# puter 26.05.4

- Product: puter (https://whatsnew.fyi/product/puter)
- Vendor: HeyPuter
- Date: 2026-05-25
- Version: 26.05.4
- Original notes: https://github.com/HeyPuter/puter/releases/tag/26.05.4
- Permalink: https://whatsnew.fyi/product/puter/releases/26.05.4

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Expose upstream AI errors as not 500s
- **fixed** — Validate private apps token too
- **fixed** — Misc write issues with fs and openrouter refresh
- **changed** — Update Indonesian language section
- **changed** — Import ESM by URL instead of path
- **fixed** — App creation dupped names limit
- **added** — New gemini 3.5 flash model
- **changed** — More validation for signed URLs
- **fixed** — Subdomain index.htmls
- **fixed** — Event types and emit subdomain serve event
- **fixed** — Together provider issues
- **fixed** — Misc issues around alerting and bugs
- **added** — AI limits tightening and add severity alert
- **fixed** — Bring back puter site config logic
- **fixed** — Bug with signed url directory listings
- **added** — Preamble versioning
- **fixed** — Associated app ids as input
- **fixed** — Search leaking metadata
- **added** — Start adding support for token expiry and invalidation
- **added** — New tokens version signature and logic

##### What's Changed
* fix: expose upstream ai errors as not 500s by @Salazareo in https://github.com/HeyPuter/puter/pull/3123
* fix: validate private apps token too by @Salazareo in https://github.com/HeyPuter/puter/pull/3124
* fix: misc write issues with fs + openrouter refresh  by @Salazareo in https://github.com/HeyPuter/puter/pull/3125
* update Indonesian section (Indonesian language) by @kenjiew in https://github.com/HeyPuter/puter/pull/3117
* import ESM by URL instead of path by @ProgrammerIn-wonderland in https://github.com/HeyPuter/puter/pull/3129
* fix: app creation dupped names limit by @Salazareo in https://github.com/HeyPuter/puter/pull/3130
* feat: new gemini 3.5 flash model by @Salazareo in https://github.com/HeyPuter/puter/pull/3131
* more validation for signed URLs by @ProgrammerIn-wonderland in https://github.com/HeyPuter/puter/pull/3133
* fix: subdomain index.htmls by @Salazareo in https://github.com/HeyPuter/puter/pull/3134
* Update gemini 3.5 flash release date by @reynaldichernando in https://github.com/HeyPuter/puter/pull/3135
* fix: agents.md name by @Salazareo in https://github.com/HeyPuter/puter/pull/3136
* fix: event types + emit subdomain serve event by @Salazareo in https://github.com/HeyPuter/puter/pull/3137
* fix: event types by @Salazareo in https://github.com/HeyPuter/puter/pull/3138
* Add cssstyle to docs dependencies by @jelveh in https://github.com/HeyPuter/puter/pull/3139
* fix together provider issues by @ProgrammerIn-wonderland in https://github.com/HeyPuter/puter/pull/3140
* fix: fixing misc issues around alerting and bugs by @Salazareo in https://github.com/HeyPuter/puter/pull/3141
* feat: ai limits tightning and add severity alert by @Salazareo in https://github.com/HeyPuter/puter/pull/3142
* Add OpenRouter model release dates by @nightt5879 in https://github.com/HeyPuter/puter/pull/3144
* fix: bring back puter site config logic by @Salazareo in https://github.com/HeyPuter/puter/pull/3145
* fix bug with signed url directory listings by @ProgrammerIn-wonderland in https://github.com/HeyPuter/puter/pull/3146
* Add preamble versioning by @ProgrammerIn-wonderland in https://github.com/HeyPuter/puter/pull/3147
* fix: associated app ids as input by @Salazareo in https://github.com/HeyPuter/puter/pull/3149
* fix: search leaking metadata by @Salazareo in https://github.com/HeyPuter/puter/pull/3150
* feat: start adding support for token expiry and invalidation by @Salazareo in https://github.com/HeyPuter/puter/pull/3151
* feat (put-1012 put-1014): new tokens version signature and logic by @Salazareo in https://github.com/HeyPuter/puter/pull/3152
* fix: fs event emissions by @Salazareo in https://github.com/HeyPuter/puter/pull/3153

##### New Contributors
* @kenjiew made their first contribution in https://github.com/HeyPuter/puter/pull/3117
* @nightt5879 made their first contribution in https://github.com/HeyPuter/puter/pull/3144

**Full Changelog**: https://github.com/HeyPuter/puter/compare/26.05.3...26.05.4