[webdiscus]

• fix(color-support): treat TERM=dumb as no color before applying COLORTERM, TERM=dumb is ignored when COLORTERM is set #49.

  COLORTERM is a color level hint.
  When TERM=dumb, Ansis now disables ANSI color output even if color environment variables such as COLORTERM=truecolor were inherited from a parent process (e.g. in Emacs M-x compile).

  FORCE_COLOR keeps the highest priority and can still explicitly enable colors.

  Auto-detection behavior changes after the fix

  Use case	v4.3.1	v4.4.0	Notes
  TERM=dumb	✅ may allow colors *	❌ no color	TERM=dumb now has higher priority in autoDetectLevel.
  TERM=dumb + COLORTERM=truecolor	✅ allow colors	❌ no color	COLORTERM no longer overrides TERM=dumb.
  TERM=dumb + CI	✅ allow colors	❌ no color	CI detection runs after TERM=dumb.
  TERM=dumb + PM2	✅ may allow colors *	❌ no color	PM2 detection runs after TERM=dumb.
  TERM=dumb + Next.js runtime	✅ may allow colors *	❌ no color	Next.js detection runs after TERM=dumb.
  COLORTERM without TERM=dumb	✅ allow colors	✅ allow colors	Unchanged.
  CI without TERM=dumb	✅ allow colors	✅ allow colors	Unchanged.
  PM2 without TERM=dumb	✅ allow colors	✅ allow colors	Unchanged.
  Next.js without TERM=dumb	✅ allow colors	✅ allow colors	Unchanged.

  * - Depends on additional conditions.

• test(color-support): add regression coverage for TERM=dumb with inherited COLORTERM=truecolor

  The tests also cover PM2 and Next.js edge behavior where stdout.isTTY is not exposed.

• test: add a manual color support checker

  Run npm run color-checker to print the environment values used by color detection and visually inspect ANSI 16, ANSI 256, and Truecolor rendering.

• test(deno): run CI against Deno 2.3+ and the current LTS

  Deno 2.0-2.2 are no longer tested in the CI matrix because they cannot use the same deno.lock v5 format as Deno 2.3+.
  Runtime compatibility with Deno 2.0-2.2 remains supported.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (678da3a) to head (a724646).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #51   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          595       601    +6     
  Branches        87        89    +2     
=========================================
+ Hits           595       601    +6     

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[webdiscus]

reviewed