diff --git a/package-lock.json b/package-lock.json
index 9b5cb74e..ebf3ed15 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,6 +18,7 @@
         "@playwright/test": "^1.56.1",
         "@types/js-yaml": "^4.0.9",
         "@types/node": "^22.7.8",
+        "@types/semver": "^7.7.1",
         "@vitest/coverage-v8": "^3.0.5",
         "eslint": "^9.31.0",
         "globals": "^15.2.0",
@@ -1688,6 +1689,13 @@
         "undici-types": "~6.19.8"
       }
     },
+    "node_modules/@types/semver": {
+      "version": "7.7.1",
+      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.7.1.tgz",
+      "integrity": "sha512-FmgJfu+MOcQ370SD0ev7EI8TlCAfKYU+B4m5T3yXc1CiRN94g/SZPtsCkk506aUDtlMnFZvasDwHHUcZUEaYuA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "8.37.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.37.0.tgz",
diff --git a/package.json b/package.json
index a7334e7e..f8bd42ea 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "copy": "cp -rf ./src/apps ./out && cp -rf ./src/plugins ./out && cp -rf ./src/presets ./out && cp -rf ./src/projects ./out",
     "dev": "tsx ./src/index.ts",
     "dev:reorder": "tsx ./src/reorder.ts",
+    "dev:upgrade": "tsx ./src/upgrade.ts",
     "dev:validate": "tsx ./src/validate.ts",
     "dev:validate:all": "for file in $(find src -type f -name '*.yaml'); do node ./build/validate.js $file; done",
     "format": "prettier . --write",
@@ -48,6 +49,7 @@
     "@playwright/test": "^1.56.1",
     "@types/js-yaml": "^4.0.9",
     "@types/node": "^22.7.8",
+    "@types/semver": "^7.7.1",
     "@vitest/coverage-v8": "^3.0.5",
     "eslint": "^9.31.0",
     "globals": "^15.2.0",
diff --git a/src/plugins/ankalot/xenroll/0.3.2/index.yaml b/src/plugins/ankalot/xenroll/0.3.2/index.yaml
new file mode 100644
index 00000000..c26d152e
--- /dev/null
+++ b/src/plugins/ankalot/xenroll/0.3.2/index.yaml
@@ -0,0 +1,36 @@
+name: XenRoll
+author: Ankalot
+description: Unique cool piano roll audio plugin
+license: gpl-3.0
+type: tool
+tags:
+  - Instrument
+  - Piano Roll
+  - Microtonal
+url: https://github.com/Ankalot/XenRoll
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/ankalot/xenroll/xenroll.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/ankalot/xenroll/xenroll.jpg
+date: '2026-03-02T12:01:47Z'
+changes: "* Added ability to record manually played keys (new button);\r\n* Fixed some small bugs."
+files:
+  - architectures:
+      - x64
+    contains:
+      - vst3
+      - so
+    sha256: d472ebd2eaaf091e7e2403f7250ec053224db6c3389c782608531aaf118397b2
+    systems:
+      - type: linux
+    size: 3217817
+    type: archive
+    url: https://github.com/Ankalot/XenRoll/releases/download/v0.3.2/XenRoll_v0.3.2_VST3_linux_x86_64.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - vst3
+    type: archive
+    size: 4840734
+    sha256: 75df6996829e0df5f84f270ac00e8bc914472b450b0cf689f053683a03de689f
+    url: https://github.com/Ankalot/XenRoll/releases/download/v0.3.2/XenRoll_v0.3.2_VST3_windows.zip
diff --git a/src/plugins/falktx/carla/2.5.10/index.yaml b/src/plugins/falktx/carla/2.5.10/index.yaml
new file mode 100644
index 00000000..2e09add6
--- /dev/null
+++ b/src/plugins/falktx/carla/2.5.10/index.yaml
@@ -0,0 +1,40 @@
+name: Carla
+author: Filipe Coelho
+description: Audio plugin host, with support for many audio drivers and plugin formats.
+license: gpl-3.0
+type: tool
+tags:
+  - Host
+  - Player
+  - Automation
+url: https://github.com/falkTX/Carla
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/falktx/carla/carla.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/falktx/carla/carla.jpg
+date: '2025-07-31T18:05:01Z'
+changes: "- Compatibility with pyliblo3 for Carla-Control\r\n- Fix a few compiler warnings\r\n- Fix alignment of LV2 Atom buffers\r\n- Fix broken MIDI program and bank messages for experimental JACK applications\r\n- Fix use of JackPortIsCV\r\n- Remove false tooltips (remain"
+files:
+  - systems:
+      - type: mac
+    architectures:
+      - arm64
+      - x64
+    contains:
+      - app
+      - lv2
+      - vst
+    type: installer
+    size: 368461548
+    sha256: a30e98409974493ade18f598566628369fee67f179a84e1c2cc3ae46a71808b1
+    url: https://github.com/falkTX/Carla/releases/download/v2.5.10/Carla-2.5.10-macOS-universal.dmg
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - dll
+      - exe
+      - lv2
+    type: archive
+    size: 247507775
+    sha256: 56264cd860b3e6e7b29221fb1e46d7d8a288fb001500f830bcd739ec7b115650
+    url: https://github.com/falkTX/Carla/releases/download/v2.5.10/Carla-2.5.10-win64.zip
diff --git a/src/plugins/lsp-plugins/lsp-plugins/1.2.25/index.yaml b/src/plugins/lsp-plugins/lsp-plugins/1.2.25/index.yaml
new file mode 100644
index 00000000..54104ae6
--- /dev/null
+++ b/src/plugins/lsp-plugins/lsp-plugins/1.2.25/index.yaml
@@ -0,0 +1,74 @@
+name: LSP Plugins
+author: Vladimir Sadovnikov
+description: A collection of open-source audio effects, synthesizers, and tools designed
+  for music and sound production, primarily on the GNU/Linux platform.
+license: lgpl-3.0
+type: effect
+tags:
+  - Delay
+  - Chorus
+  - Compressor
+  - Filter
+  - Flanger
+  - Gate
+  - Mixer
+  - Sampler
+url: https://github.com/lsp-plugins/lsp-plugins
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/lsp-plugins/lsp-plugins/lsp-plugins.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/lsp-plugins/lsp-plugins/lsp-plugins.jpg
+donate: https://www.patreon.com/c/sadko4u
+date: '2025-11-03T22:46:25Z'
+changes: "* Improved plugin metadata validation tool in plugin framework.\r\n* VST3 data synchronization between DSP and UI is now performed in the UI thread if possible.\r\n* Fixed VST3 crash on JUCE-based hosts related to improper IRunLoop handling.\r\n* Fixed Room Bui"
+files:
+  - systems:
+      - type: linux
+    architectures:
+      - arm64
+    contains:
+      - clap
+      - lv2
+      - vst3
+      - so
+    type: archive
+    size: 10662781
+    sha256: 0fb5572f81d203d4b6135587c4969362a6f00d63edf9867b24b45b5598e87f21
+    url: https://github.com/lsp-plugins/lsp-plugins/releases/download/1.2.25/lsp-plugins-1.2.25-Linux-aarch64.7z
+  - systems:
+      - type: linux
+    architectures:
+      - arm32
+    contains:
+      - clap
+      - lv2
+      - vst3
+      - so
+    type: archive
+    size: 6510025
+    sha256: e9dd6fe4cb86e5c3f3c1f1398e794a4f4d952e4aa8715259026aefba951ad7d1
+    url: https://github.com/lsp-plugins/lsp-plugins/releases/download/1.2.25/lsp-plugins-1.2.25-Linux-arm32.7z
+  - systems:
+      - type: linux
+    architectures:
+      - x32
+    contains:
+      - clap
+      - lv2
+      - vst3
+      - so
+    type: archive
+    size: 6849152
+    sha256: 9b1249947c2633d92dc6f911f90b360c4a3fde3bc57360eb8ea59603365403e1
+    url: https://github.com/lsp-plugins/lsp-plugins/releases/download/1.2.25/lsp-plugins-1.2.25-Linux-i586.7z
+  - systems:
+      - type: linux
+    architectures:
+      - x64
+    contains:
+      - clap
+      - lv2
+      - vst3
+      - so
+    type: archive
+    size: 9870936
+    sha256: e6481e12805f98f26c77919c3b72d15dd87e0f0c1a9458a4d91e5d09fa47872f
+    url: https://github.com/lsp-plugins/lsp-plugins/releases/download/1.2.25/lsp-plugins-1.2.25-Linux-x86_64.7z
diff --git a/src/plugins/sfzinstruments/virtuosity_drums/0.924.0/index.yaml b/src/plugins/sfzinstruments/virtuosity_drums/0.924.0/index.yaml
new file mode 100644
index 00000000..ced94dd3
--- /dev/null
+++ b/src/plugins/sfzinstruments/virtuosity_drums/0.924.0/index.yaml
@@ -0,0 +1,35 @@
+name: Virtuosity Drums
+author: Versilian Studios
+description: Contemporary Jazz drum kit library, performed with sticks, recorded at
+  Virtuosity Musical Instruments in Boston, MA.
+license: cc0-1.0
+type: sampler
+tags:
+  - Instrument
+  - Drums
+  - Jazz
+  - sfz
+url: https://github.com/sfzinstruments/virtuosity_drums
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/sfzinstruments/virtuosity_drums/virtuosity-drums.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/sfzinstruments/virtuosity_drums/virtuosity-drums.jpg
+date: '2022-09-21T07:19:31Z'
+changes: Bugfix release for ride and crash cymbal mappings. In earlier versions,
+  velocity of exactly 44 would result in every fourth round robin not playing
+  for the flat ride, ride as ride, crash and sizzle crash keys. Thanks to the
+  anon user who found and fixed t
+files:
+  - systems:
+      - type: linux
+      - type: mac
+      - type: win
+    architectures:
+      - arm32
+      - arm64
+      - x32
+      - x64
+    contains:
+      - sfz
+    type: archive
+    size: 1227222816
+    sha256: a8e0da36cfe0a3832f09c24116139e3f72806144d10f3091dcc91e1636118fab
+    url: https://github.com/sfzinstruments/virtuosity_drums/releases/download/v0.924/Virtuosity_Drums_v0.924.zip
diff --git a/src/plugins/sjoerdvankreel/firefly-synth-2/2.1.2/index.yaml b/src/plugins/sjoerdvankreel/firefly-synth-2/2.1.2/index.yaml
new file mode 100644
index 00000000..c488b595
--- /dev/null
+++ b/src/plugins/sjoerdvankreel/firefly-synth-2/2.1.2/index.yaml
@@ -0,0 +1,76 @@
+name: Firefly Synth 2
+author: Sjoerd van Kreel
+description: Semi-modular synth.
+license: gpl-3.0
+type: instrument
+tags:
+  - Instrument
+  - Synth
+url: https://github.com/sjoerdvankreel/firefly-synth-2
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/sjoerdvankreel/firefly-synth-2/firefly-synth-2.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/sjoerdvankreel/firefly-synth-2/firefly-synth-2.jpg
+date: '2026-03-25T19:09:06Z'
+changes: "- Add compressor as an effect type.\r\n- Add sidechain support for FX build.\r\n- Master softclip now defaults to off.\r\n- Add new routing controls for FX build GMix for sidechain.\r\n- FX global echo can now target main input and sidechain input.\r\n- FX oscillat"
+files:
+  - systems:
+      - type: linux
+    architectures:
+      - x64
+    contains:
+      - clap
+    type: archive
+    sha256: bea4b22da4e40e5f1c640cb06700f7fa0718b412230d3f30287d202af23409a4
+    size: 5246324
+    url: https://github.com/sjoerdvankreel/firefly-synth-2/releases/download/v2.1.2/FireflySynth2-linux-clap-Release.zip
+  - systems:
+      - type: linux
+    architectures:
+      - x64
+    contains:
+      - vst3
+    type: archive
+    sha256: a9664a1a89431dfd9c3e6b3827006add5a59f9b719acbf9783f72ffcd3a4d3a9
+    size: 5278065
+    url: https://github.com/sjoerdvankreel/firefly-synth-2/releases/download/v2.1.2/FireflySynth2-linux-vst3-Release.zip
+  - systems:
+      - type: mac
+    architectures:
+      - arm64
+      - x64
+    contains:
+      - clap
+    type: archive
+    sha256: f6a6078dcfaa9c39b41da831dcbde152a3b15587a28c858c242ea31e5be58296
+    size: 7750069
+    url: https://github.com/sjoerdvankreel/firefly-synth-2/releases/download/v2.1.2/FireflySynth2-mac-clap-Release.zip
+  - systems:
+      - type: mac
+    architectures:
+      - arm64
+      - x64
+    contains:
+      - vst3
+    type: archive
+    sha256: 7caf221ba447511e0cb922c4af8303aa72e3f5f9610ce2456ac5112facdf113b
+    size: 7782252
+    url: https://github.com/sjoerdvankreel/firefly-synth-2/releases/download/v2.1.2/FireflySynth2-mac-vst3-Release.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - clap
+    type: archive
+    sha256: d860d0fc226cbd2ce5ac9132063707e9362c2c1edd0af5a2d9e2520574f577cb
+    size: 5303465
+    url: https://github.com/sjoerdvankreel/firefly-synth-2/releases/download/v2.1.2/FireflySynth2-windows-clap-Release.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - vst3
+    type: archive
+    sha256: 10d03c50b83730654d9a6a628384eb2a1d8bf5de0a33f71a715f0af54055b9fc
+    size: 5342217
+    url: https://github.com/sjoerdvankreel/firefly-synth-2/releases/download/v2.1.2/FireflySynth2-windows-vst3-Release.zip
diff --git a/src/plugins/tiagolr/filtr/1.1.0/index.yaml b/src/plugins/tiagolr/filtr/1.1.0/index.yaml
new file mode 100644
index 00000000..0238f91f
--- /dev/null
+++ b/src/plugins/tiagolr/filtr/1.1.0/index.yaml
@@ -0,0 +1,50 @@
+name: FILT-R
+author: TiagoLr
+description: Cross-platform filter modulator based on plugins like ShaperBox and
+  FilterShaper.
+license: gpl-3.0
+type: effect
+tags:
+  - Envelope
+  - Modulation
+  - Filter
+url: https://github.com/tiagolr/filtr
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/filtr/filtr.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/filtr/filtr.jpg
+date: '2025-11-06T20:26:02Z'
+changes: "Points movement no longer constrained by next and prev points.\r\nAdd more time options to sync rate 1/32 1/64 1/128 1/256.\r\nAdded Half Sine point mode."
+files:
+  - architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    sha256: b6388c7869f7f9ea9ee33e055f2768ba734d4e3e4b35770222f314ce000ac57f
+    systems:
+      - type: linux
+    size: 5311016
+    type: archive
+    url: https://github.com/tiagolr/filtr/releases/download/v1.1.0/filtr-linux-v1.1.0.zip
+  - architectures:
+      - x64
+    contains:
+      - component
+      - lv2
+      - vst3
+    sha256: 5c1d3995e870bd28b854f104a24dbea3e56754d16a0a37a553c865d0671ab21b
+    systems:
+      - type: mac
+    size: 12946282
+    type: archive
+    url: https://github.com/tiagolr/filtr/releases/download/v1.1.0/filtr-macos-v1.1.0.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    type: archive
+    size: 6496292
+    sha256: 67981cf69f2ad5f95e49888db67f80bcb4eb8fa3f14da636222f1bde1b52a4f3
+    url: https://github.com/tiagolr/filtr/releases/download/v1.1.0/filtr-win-v1.1.0.zip
diff --git a/src/plugins/tiagolr/gate12/1.3.2/index.yaml b/src/plugins/tiagolr/gate12/1.3.2/index.yaml
new file mode 100644
index 00000000..8b939482
--- /dev/null
+++ b/src/plugins/tiagolr/gate12/1.3.2/index.yaml
@@ -0,0 +1,49 @@
+name: GATE-12
+author: TiagoLr
+description: Cross-platform envelope generator for gate/volume control inspired by plugins
+  like GrossBeat and ShaperBox.
+license: gpl-3.0
+type: effect
+tags:
+  - Effect
+  - Gate
+url: https://github.com/tiagolr/gate12
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/gate12/gate12.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/gate12/gate12.jpg
+date: '2026-01-20T17:24:04Z'
+changes: "Band split - switch 12dB filters to Linkwitz-Riley Minimum Phase\r\nBand split - add 24dB Linkwitz-Riley"
+files:
+  - architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    sha256: 580e4728ee9e4cfa32321c6f22783b7ddb570640a4dee398c704613a527656de
+    systems:
+      - type: linux
+    size: 5136066
+    type: archive
+    url: https://github.com/tiagolr/gate12/releases/download/v1.3.2/gate12-linux-v1.3.2.zip
+  - architectures:
+      - x64
+    contains:
+      - component
+      - lv2
+      - vst3
+    sha256: 1edc8651811b2d6bf412b5d00d28de46559f2b3d170ffea182206bae95a00b1f
+    systems:
+      - type: mac
+    size: 12504581
+    type: archive
+    url: https://github.com/tiagolr/gate12/releases/download/v1.3.2/gate12-macos-v1.3.2.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    type: archive
+    size: 6383922
+    sha256: 18135fe98d46ac359bf73d7d1929e9141a151663afd7f29479def5c44d85b78f
+    url: https://github.com/tiagolr/gate12/releases/download/v1.3.2/gate12-win-v1.3.2.zip
diff --git a/src/plugins/tiagolr/qdelay/1.1.2/index.yaml b/src/plugins/tiagolr/qdelay/1.1.2/index.yaml
new file mode 100644
index 00000000..e043f231
--- /dev/null
+++ b/src/plugins/tiagolr/qdelay/1.1.2/index.yaml
@@ -0,0 +1,53 @@
+name: QDelay
+author: TiagoLr
+description: A dual-delay with more features than it should.
+license: gpl-3.0
+type: effect
+tags:
+  - Delay
+  - Reverb
+  - Pitch-shifter
+  - Tape Delay
+  - Analog Delay
+  - Saturation
+  - Ping-pong delay
+url: https://github.com/tiagolr/qdelay
+donate: https://www.buymeacoffee.com/tilr
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/qdelay/qdelay.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/qdelay/qdelay.jpg
+date: '2026-03-22T04:33:34Z'
+changes: "Clear all on host reset()\r\nRemove clear on stop and clear on loop\r\nInvert time pickers range"
+files:
+  - architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    sha256: 3127713fd2aa9dabfc8dc52912f40be983c9c057c1cee0c090bdc50c98b1c101
+    systems:
+      - type: linux
+    size: 5451971
+    type: archive
+    url: https://github.com/tiagolr/qdelay/releases/download/v1.1.2/qdelay-linux-v1.1.2.zip
+  - architectures:
+      - x64
+      - arm64
+    contains:
+      - vst3
+      - component
+    sha256: 44a6e68f62c60f14b6ae3da64e93387af51682aadcd421b51e53078fb6642fcf
+    systems:
+      - type: mac
+    size: 8795936
+    type: archive
+    url: https://github.com/tiagolr/qdelay/releases/download/v1.1.2/qdelay-macos-v1.1.2.zip
+  - architectures:
+      - x64
+    contains:
+      - vst3
+    sha256: 629bd9c82daf1f0b6653f47e0a9df7ae8b33f2db847e2bb6c02d7784aec8f9ae
+    systems:
+      - type: win
+    size: 3341979
+    type: archive
+    url: https://github.com/tiagolr/qdelay/releases/download/v1.1.2/qdelay-win-v1.1.2.zip
diff --git a/src/plugins/tiagolr/reevr/1.4.0/index.yaml b/src/plugins/tiagolr/reevr/1.4.0/index.yaml
new file mode 100644
index 00000000..7aff2686
--- /dev/null
+++ b/src/plugins/tiagolr/reevr/1.4.0/index.yaml
@@ -0,0 +1,49 @@
+name: REEV-R
+author: TiagoLr
+description: Convolution reverb with modulation for pre/send and post/volume signals.
+license: gpl-3.0
+type: effect
+tags:
+  - Modulation
+  - Convolution
+  - Reverb
+url: https://github.com/tiagolr/reevr
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/reevr/reevr.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/reevr/reevr.jpg
+date: '2026-01-22T17:50:32Z'
+changes: "Add band splitting\r\nFix crash when transforming send or reverb amount\r\nFix UI scale not being recalled"
+files:
+  - architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    sha256: 243da8bd8b90e60372f75ddea9a6ae54c5a1dd7f2071b0050e47ed613c511f8f
+    systems:
+      - type: linux
+    size: 7549063
+    type: archive
+    url: https://github.com/tiagolr/reevr/releases/download/v1.4.0/reevr-linux-v1.4.0.zip
+  - architectures:
+      - x64
+    contains:
+      - component
+      - lv2
+      - vst3
+    sha256: 92e069e942ac0f286169b32d0fd175483a10e07da6470a3582c93cc8a741c9e3
+    systems:
+      - type: mac
+    size: 19300930
+    type: archive
+    url: https://github.com/tiagolr/reevr/releases/download/v1.4.0/reevr-macos-v1.4.0.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - vst3
+      - lv2
+    type: archive
+    size: 7730204
+    sha256: d22f2c2421f4d3b52040bad8878ec37c96f1c69413f231f689769833dfffb864
+    url: https://github.com/tiagolr/reevr/releases/download/v1.4.0/reevr-win-v1.4.0.zip
diff --git a/src/plugins/tiagolr/time12/1.2.2/index.yaml b/src/plugins/tiagolr/time12/1.2.2/index.yaml
new file mode 100644
index 00000000..e3a3faa4
--- /dev/null
+++ b/src/plugins/tiagolr/time12/1.2.2/index.yaml
@@ -0,0 +1,51 @@
+name: TIME-12
+author: TiagoLr
+description: Delay modulator similar to plugins like GrossBeat or TimeShaper. Can be used
+  for stutter effects, tape stop, glitch, scratch, reverse, pitch shift and
+  more.
+license: gpl-3.0
+type: effect
+tags:
+  - Effect
+  - Modulation
+  - Delay
+url: https://github.com/tiagolr/time12
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/time12/time12.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/tiagolr/time12/time12.jpg
+date: '2025-11-16T23:28:06Z'
+changes: Fixed wrong audio display in Ardour DAW
+files:
+  - architectures:
+      - x64
+    contains:
+      - lv2
+      - vst3
+    sha256: 50b0683162221b445cc447afdb4bbe1a87354d7f2282e33d7c8943b78b913b3a
+    systems:
+      - type: linux
+    size: 5065935
+    type: archive
+    url: https://github.com/tiagolr/time12/releases/download/v1.2.2/time12-linux-v1.2.2.zip
+  - architectures:
+      - x64
+    contains:
+      - component
+      - lv2
+      - vst3
+    sha256: 154270fb6d1a30ac65c5642849f1445ff8531572d82ae77feaf78d38ae244a0b
+    systems:
+      - type: mac
+    size: 12313228
+    type: archive
+    url: https://github.com/tiagolr/time12/releases/download/v1.2.2/time12-macos-v1.2.2.zip
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - lv2
+      - vst3
+    type: archive
+    size: 5544638
+    sha256: 1c80421cda934a5a0c7f75af427d24358921e182b953ad92a120d19d095f0a4e
+    url: https://github.com/tiagolr/time12/releases/download/v1.2.2/time12-win-v1.2.2.zip
diff --git a/src/plugins/utokusa/os-251/1.3.0/index.yaml b/src/plugins/utokusa/os-251/1.3.0/index.yaml
new file mode 100644
index 00000000..63fe3db4
--- /dev/null
+++ b/src/plugins/utokusa/os-251/1.3.0/index.yaml
@@ -0,0 +1,49 @@
+name: OS-251
+author: Utokusa
+description: JUNO style digital subtractive synthesizer with a simple yet powerful DSP
+  algorithm.
+license: gpl-3.0
+type: instrument
+tags:
+  - Instrument
+  - Synth
+  - Lo-fi
+url: https://github.com/utokusa/OS-251
+audio: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/utokusa/os-251/os-251.flac
+image: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/utokusa/os-251/os-251.jpg
+date: '2025-01-11T11:02:04Z'
+changes: "- Upgrade JUCE to 7.0.12\r\n- Minor UI fix"
+files:
+  - systems:
+      - type: linux
+    architectures:
+      - x64
+    contains:
+      - lv2
+      - vst3
+    type: archive
+    size: 8621948
+    sha256: 862ddc6e7f63fc6a478b513bdb0d257dcb6fa0b32c7f5bd20c47c369c252eda5
+    url: https://github.com/utokusa/OS-251/releases/download/v1.3.0/OS-251-Linux.zip
+  - systems:
+      - type: mac
+    architectures:
+      - x64
+    contains:
+      - component
+      - vst3
+    type: installer
+    size: 14645710
+    sha256: 06b62a2e06301957102526bc3ceb6f070c1a20cae2abc9884054a205df9b7415
+    url: https://github.com/utokusa/OS-251/releases/download/v1.3.0/OS-251-macOS.dmg
+  - systems:
+      - type: win
+    architectures:
+      - x64
+    contains:
+      - dll
+      - vst3
+    type: archive
+    size: 2397407
+    sha256: f60d40af58cf55b2131f4d2fdfe283f1434c01a26722fc55389d4db5f7c1b6d1
+    url: https://github.com/utokusa/OS-251/releases/download/v1.3.0/OS-251-Windows.zip
diff --git a/src/upgrade.ts b/src/upgrade.ts
new file mode 100644
index 00000000..4e2e932b
--- /dev/null
+++ b/src/upgrade.ts
@@ -0,0 +1,212 @@
+import { dirCreate, dirRead, fileCreate, fileReadYaml } from '@open-audio-stack/core';
+import yaml from 'js-yaml';
+import path from 'path';
+import { createHash } from 'crypto';
+import * as semver from 'semver';
+
+/**
+ * Helper to compare versions
+ * @param v1 First version
+ * @param v2 Second version
+ * @returns 1 if v2 > v1, -1 if v1 > v2, 0 if equal
+ */
+function versionCompare(v1: string, v2: string) {
+  const v1parts = (semver.valid(v1) || semver.coerce(v1)?.version || v1.replace(/^v/, '')).split('.').map(Number);
+  const v2parts = (semver.valid(v2) || semver.coerce(v2)?.version || v2.replace(/^v/, '')).split('.').map(Number);
+  for (let i = 0; i < Math.max(v1parts.length, v2parts.length); ++i) {
+    const p1 = v1parts[i] || 0;
+    const p2 = v2parts[i] || 0;
+    if (p2 > p1) return 1;
+    if (p2 < p1) return -1;
+  }
+  return 0;
+}
+
+/**
+ * Helper to normalize version strings to valid semver if possible
+ * @param v Version string
+ * @returns Valid semver or original
+ */
+function versionNormalize(v: string): string {
+  const clean = v.replace(/^v/, '');
+  return semver.valid(clean) || semver.coerce(clean)?.version || clean;
+}
+
+/**
+ * Helper to calculate SHA256 of a remote file
+ * @param url File URL
+ * @returns SHA256 hash string
+ */
+async function fileHash(url: string): Promise<string> {
+  const response = await fetch(url);
+  if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
+  const hash = createHash('sha256');
+  const buffer = await response.arrayBuffer();
+  hash.update(Buffer.from(buffer));
+  return hash.digest('hex');
+}
+
+const yamlFiles = dirRead('src/**/*.yaml');
+const pkgGroups: Record<string, string[]> = {};
+
+if (!process.env.GITHUB_TOKEN) {
+  console.warn('Warning: GITHUB_TOKEN is not set. You will likely hit rate limits.');
+  console.warn('Set it with: export GITHUB_TOKEN=your_token\n');
+}
+
+// Group versions by package directory
+for (const yamlFile of yamlFiles) {
+  const dir = path.dirname(yamlFile);
+  const pkgDir = path.dirname(dir);
+  const version = path.basename(dir);
+  if (!pkgGroups[pkgDir]) pkgGroups[pkgDir] = [];
+  pkgGroups[pkgDir].push(version);
+}
+
+for (const pkgDir in pkgGroups) {
+  const versions = pkgGroups[pkgDir].sort(versionCompare);
+  const latestVersion = versions[versions.length - 1];
+  const latestYamlFile = path.join(pkgDir, latestVersion, 'index.yaml');
+
+  const pkgJson: any = fileReadYaml(latestYamlFile);
+  if (!pkgJson || !pkgJson.url) continue;
+
+  let repo = '';
+  try {
+    const url = new URL(pkgJson.url);
+    if (url.hostname !== 'github.com') continue;
+    repo = url.pathname.split('/').filter(Boolean).slice(0, 2).join('/');
+    if (!repo || repo.split('/').length < 2) continue;
+
+    let response;
+    let retries = 2;
+    while (retries >= 0) {
+      response = await fetch(`https://api.github.com/repos/${repo}/releases`, {
+        headers: {
+          'User-Agent': 'open-audio-stack-registry-updater',
+          ...(process.env.GITHUB_TOKEN ? { Authorization: `token ${process.env.GITHUB_TOKEN}` } : {}),
+        },
+      });
+
+      if (response.status === 403 || response.status === 429) {
+        const rateLimitReset = response.headers.get('x-ratelimit-reset');
+        const retryAfter = response.headers.get('retry-after');
+        let waitTime = 60000; // Default 1 minute
+        if (rateLimitReset) {
+          waitTime = Math.max(0, parseInt(rateLimitReset) * 1000 - Date.now()) + 1000;
+        } else if (retryAfter) {
+          waitTime = parseInt(retryAfter) * 1000;
+        }
+
+        console.warn(
+          `Rate limit hit for ${repo}. Status: ${response.status}. Waiting ${Math.round(waitTime / 1000 / 60)}m ${Math.round((waitTime / 1000) % 60)}s...`,
+        );
+        await new Promise(resolve => setTimeout(resolve, waitTime));
+        retries--;
+        continue;
+      }
+      break;
+    }
+
+    if (!response || !response.ok) {
+      if (response && response.status !== 404) {
+        console.error(`Failed to fetch releases for ${repo}: ${response.status} ${response.statusText}`);
+      }
+      continue;
+    }
+
+    const releases: any[] = await response.json();
+    if (!Array.isArray(releases)) continue;
+
+    for (const release of releases) {
+      if (release.draft || release.prerelease) continue;
+
+      const newVersion = versionNormalize(release.tag_name);
+      if (versionCompare(latestVersion, newVersion) > 0) {
+        if (pkgGroups[pkgDir].includes(newVersion)) continue;
+
+        const newVersionDir = path.join(pkgDir, newVersion);
+
+        const newPkgJson = JSON.parse(JSON.stringify(pkgJson));
+        newPkgJson.date = release.published_at;
+        newPkgJson.changes = (release.body || release.name || '').substring(0, 255);
+
+        // Update file URLs and metadata
+        if (newPkgJson.files) {
+          console.log(`Upgrading ${pkgDir} to ${newVersion}...`);
+          for (const file of newPkgJson.files) {
+            const oldUrl = file.url;
+            const oldFilename = path.basename(oldUrl);
+
+            // Try to find a matching asset in the new release
+            const newAsset = release.assets.find((a: any) => {
+              const potentialName = oldFilename
+                .replace(latestVersion, newVersion)
+                .replace('v' + latestVersion, release.tag_name);
+              return a.name === potentialName || a.name === oldFilename;
+            });
+
+            if (newAsset) {
+              file.url = newAsset.browser_download_url;
+              file.size = newAsset.size;
+              if (newAsset.digest) {
+                file.sha256 = newAsset.digest.replace('sha256:', '');
+              } else {
+                console.log(`  Hashing ${file.url}...`);
+                file.sha256 = await fileHash(file.url);
+              }
+            } else {
+              // Fallback replacement in URL if no exact asset match found
+              file.url = oldUrl.replace(latestVersion, newVersion).replace('v' + latestVersion, release.tag_name);
+              console.log(`  Hashing ${file.url}...`);
+              file.sha256 = await fileHash(file.url);
+              // We can't know size easily without asset info, leave as is or recalculate if possible
+              delete file.size; // Safety remove if size changed but we don't know it
+            }
+          }
+        }
+
+        dirCreate(newVersionDir);
+        fileCreate(
+          path.join(newVersionDir, 'index.yaml'),
+          yaml.dump(newPkgJson, {
+            lineWidth: -1,
+            sortKeys: function (a, b) {
+              const yamlOrder = [
+                'name',
+                'author',
+                'description',
+                'license',
+                'type',
+                'tags',
+                'url',
+                'donate',
+                'audio',
+                'image',
+                'date',
+                'changes',
+                'files',
+              ];
+              const filesOrder = ['systems', 'architectures', 'contains', 'format', 'type', 'size', 'sha256', 'url'];
+              const isFile: boolean = filesOrder.includes(a) && filesOrder.includes(b);
+              const aIndex: number = isFile ? filesOrder.indexOf(a) : yamlOrder.indexOf(a);
+              const bIndex: number = isFile ? filesOrder.indexOf(b) : yamlOrder.indexOf(b);
+              return bIndex < aIndex ? 1 : bIndex > aIndex ? -1 : 0;
+            },
+          }),
+        );
+        console.log(`./${path.join(newVersionDir, 'index.yaml')}`);
+
+        // Update local list to avoid duplicates if multiple YAMLs exist (unlikely but safe)
+        pkgGroups[pkgDir].push(newVersion);
+        break;
+      }
+    }
+  } catch (error) {
+    console.error(`Error processing ${repo}:`, error);
+  }
+
+  // Delay to avoid aggressive calling
+  const delay = process.env.GITHUB_TOKEN ? 200 : 1000;
+  await new Promise(resolve => setTimeout(resolve, delay));
+}
diff --git a/src/validate.ts b/src/validate.ts
index 505c4e63..70c336b4 100644
--- a/src/validate.ts
+++ b/src/validate.ts
@@ -71,16 +71,3 @@ if (!fileExists(imagePathLocal)) {
     },
   ] as ZodIssue[]);
 }
-
-// Test a real installation on this operating system
-// console.log('-------- Install --------');
-// const managerConfig: ConfigInterface = {
-//   appDir: 'test',
-//   pluginsDir: 'test/plugins',
-//   presetsDir: 'test/presets',
-//   projectsDir: 'test/projects',
-// };
-// const manager: ManagerLocal = new ManagerLocal(type as RegistryType, managerConfig);
-// manager.logEnable();
-// manager.addPackage(pkg);
-// manager.install(slug, version);