v5.4.0

5.4.0 (2026-09-23)

Features

• auth: read TD_USER as the fallback for --user (#536) (fb38a16), closes #539
• doctor: check installed extensions (#538) (a4c4229), closes #539
• extensions: core types, naming and manifests (#521) (c5a7431), closes #520 #522 #523 #524 #525 #526 #527
• extensions: discover installed extensions (#522) (b6906dc), closes #521 #523 #524 #525 #526 #527
• extensions: git, npm and GitHub helpers, and removal (#524) (42d6d08), closes #521 #522 #523 #525 #526 #527
• extensions: install extensions (#525) (6a3ded9), closes #521 #522 #523 #524 #526 #527
• extensions: install, upgrade and remove commands (#534) (fcd2cf7), closes #539
• extensions: pass-through commands and the unknown-command hint (#535) (a14d3e7), closes #539
• extensions: run extensions (#523) (07fd458), closes #521 #522 #524 #525 #526 #527
• extensions: scaffold a new extension with td extension create (#542) (76dc592)
• extensions: the extension command group, list and exec (#533) (f15a30d), closes #539
• extensions: the extension manager facade (#527) (bcd84b6), closes #521 #522 #523 #524 #525 #526
• extensions: upgrade extensions (#526) (4569d11), closes #521 #522 #523 #524 #525 #527
• paths: resolve the per-user data and state directories (#531) (e84bc0d), closes #539
• td: wire extensions into the CLI (#537) (6f7021c), closes #539

Bug Fixes

• extensions: stop a manifest range from breaking the extension (#541) (78e918e)