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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

[0.5.0] - 2026-03-14

Added

  • Interactive terminal UI (-tui flag) built with Bubble Tea — form-based config screen and live-scrolling results view; no CLI arguments required to launch
  • make tui Makefile target for one-command TUI launch
  • internal/scan package: extracted scan engine (scan.Run) with typed Event channel, usable by both CLI and TUI
  • TUI session persistence: last-used form values written to ~/.config/subenum/last.json and restored on next launch or after pressing r (new scan)

Changed

  • CLI scan loop in main.go now delegates to scan.Run() instead of containing the worker pool inline
  • External dependencies added: github.com/charmbracelet/bubbletea and github.com/charmbracelet/bubbles (TUI only; CLI path has zero external dependencies)
  • TUI form field order: Simulate toggle promoted to field 3 (was field 8); Hit Rate row is hidden when Simulate is OFF
  • TUI now shows a blinking cursor inside the active text input
  • Pressing r on the scan results screen returns to the form with last-used values pre-filled (was reset to defaults)

[0.4.0] - 2026-03-14

Added

  • Wildcard DNS detection with double-probe confirmation; exits by default, continue with -force
  • Wordlist deduplication (duplicates removed before scanning, count reported in verbose mode)
  • -attempts flag replacing -retries (deprecated, still accepted with warning)

Changed

  • Refactored into internal/dns, internal/output, internal/wordlist packages
  • Progress, verbose, and diagnostic output moved to stderr (stdout is now pipe-clean)
  • Version bumped to 0.4.0

Fixed

  • Progress ticker no longer corrupts piped stdout output
  • -retries semantics clarified via rename to -attempts

[0.3.0] - 2026-02-22

Added

  • Output file support with the -o flag to save results to a file
  • DNS retry mechanism with configurable -retries flag for transient failure resilience
  • Graceful shutdown on SIGINT/SIGTERM — drains in-flight workers and prints partial results
  • Proper DNS server validation (IP format and port range 1-65535)
  • Domain format validation against DNS naming rules
  • Tests for validateDNSServer, validateDomain, resolveDomainWithRetry, and simulateResolution

Changed

  • Removed deprecated rand.Seed call (auto-seeded since Go 1.20)
  • Tests now use t.Errorf for real assertions instead of t.Logf warnings
  • Fixed test compilation — resolveDomain calls now pass all 4 required parameters
  • Updated all placeholder URLs/emails in documentation to actual repo values

Fixed

  • Progress goroutine done channel is now buffered to prevent potential deadlock
  • Mutex-protected stdout/file output to prevent interleaved writes from concurrent workers

[0.2.0] - 2025-05-08

Added

  • Custom DNS server support with the -dns-server flag
  • Verbose output mode with the -v flag
  • Progress reporting during scans (enabled by default)
  • Version information accessible via the -version flag
  • Input validation for concurrency and timeout values
  • Legal disclaimers and usage restrictions to prevent misuse
  • Comprehensive documentation via README.md and docs folder
  • Developer Guide with setup and contribution instructions
  • Example wordlist and multi-domain scanning script
  • Basic test suite for DNS resolution

Changed

  • Enhanced error handling with user-friendly messages
  • Improved code structure and documentation
  • DNS resolution now reports timing information in verbose mode

Fixed

  • Proper cleanup of resources after scans complete
  • Prevention of negative values for concurrency and timeout

[0.1.0] - 2025-05-07

Added

  • Initial project setup with basic functionality
  • Concurrent subdomain enumeration using goroutines
  • DNS resolution with configurable timeout
  • Command-line flags for wordlist, concurrency, and timeout