Codex Compact Fallback Patcher v0.1.1

Release Notes v0.1.1

Codex gpt-5.5 Compact Fallback Patch

This release refreshes upstream compatibility handling after the official Codex
App and openai/codex prerelease updates.

Compatibility

• Stable rust-v0.130.0: patch_applies_with_drift
• Prerelease rust-v0.131.0-alpha.18: patch_applies
• Current main: patch_applies
• Locally observed Codex Desktop bundled CLI: codex-cli 0.130.0-alpha.5

Changes

• Add scripts/check-upstream-compat.sh for source-level compatibility checks.
• Add a GitHub Actions workflow template for upstream compact patch drift under
  docs/github-actions/.
• Expand scripts/verify.sh and scripts/verify.ps1 into post-update health
  checks with app version, CLI version, hash, marker status, install state, and
  optional upstream compatibility output.
• Refresh English and Simplified Chinese README quick-start guidance.

Assets

• Source patch under patches/
• Build, install, restore, and verify scripts under scripts/
• Upstream compatibility checker under scripts/
• Operator documentation under docs/
• English and Simplified Chinese README files
• SHA-256 checksums in checksums.txt

Validation

• The source patch applies cleanly to codex-rs/core/src/compact_remote.rs for
  main, rust-v0.131.0-alpha.18, and rust-v0.130.0.
• Script tests cover install, verify, restore, package creation, and checksum
  generation with local fake binaries.
• This release does not include a prebuilt patched Codex binary.

Safety

This release does not include a modified Codex application bundle. Installers
operate on a user's local Codex installation and create a backup before
replacement.

Verification

After installation, verify marker strings:

strings /Applications/Codex.app/Contents/Resources/codex | \
  rg 'retrying remote compaction with fallback model|gpt-5.4-mini|gpt-5.5'

Verify fallback trigger logs:

sqlite3 "$HOME/.codex/logs_2.sqlite" \
  "select id, datetime(timestamp, 'unixepoch'), level, target, feedback_log_body
   from logs
   where target = 'codex_core::compact_remote'
     and feedback_log_body like '%fallback model%'
   order by id desc
   limit 20;"

Codex Compact Fallback Patcher v0.1.0

Release Notes

Codex gpt-5.5 Compact Fallback Patch

This release packages the source-level compact fallback patch and platform
patcher scripts.

Compatible target for this patcher release:

• openai/codex codex-rs/core/src/compact_remote.rs
• Verified target blob: cc31d50b13268417fa34d8262a7c3682cda8912e
• Locally observed Codex Desktop bundled CLI: codex-cli 0.130.0-alpha.5

Assets

• Source patch under patches/
• Build, install, restore, and verify scripts under scripts/
• Operator documentation under docs/
• English and Simplified Chinese README files
• SHA-256 checksums in checksums.txt

Validation

• The source patch applies cleanly to codex-rs/core/src/compact_remote.rs.
• Script tests cover install, verify, restore, package creation, and checksum
  generation with local fake binaries.
• This release does not include a prebuilt patched Codex binary.

Safety

This release does not include a modified Codex application bundle. Installers
operate on a user's local Codex installation and create a backup before
replacement.

Verification

After installation, verify marker strings:

strings /Applications/Codex.app/Contents/Resources/codex | \
  rg 'retrying remote compaction with fallback model|gpt-5.4-mini|gpt-5.5'

Verify fallback trigger logs:

sqlite3 "$HOME/.codex/logs_2.sqlite" \
  "select id, datetime(timestamp, 'unixepoch'), level, target, feedback_log_body
   from logs
   where target = 'codex_core::compact_remote'
     and feedback_log_body like '%fallback model%'
   order by id desc
   limit 20;"