# Coolify v4.3.10

- Product: Coolify (https://whatsnew.fyi/product/coolify)
- Vendor: Coollabs
- Date: 2026-08-21
- Version: v4.3.10
- Original notes: https://github.com/coollabsio/coolify/releases/tag/v4.3.10
- Permalink: https://whatsnew.fyi/product/coolify/releases/v4.3.10

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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- **added** — Add configurable SMTP EHLO domains for instance and team email delivery
- **added** — Add API endpoints for viewing and updating instance-wide SMTP and Resend settings
- **added** — Add manual upgrade controls to the Updates page and mobile navigation
- **fixed** — Apply the configured sender name and address to SMTP, Resend, test, transactional, and password-reset emails
- **fixed** — Respect disabled SMTP encryption in test emails
- **fixed** — Prevent Proton SMTP from folding long From headers
- **fixed** — Restrict API token visibility and revocation to the active team, and stop expiration warnings for users who had left that team
- **fixed** — Persist the target image and version before container recreation so upgrades keep the installed version aligned
- **fixed** — Restore generated Caddy labels for applications with configured domains
- **fixed** — Allow domains to be added to services with an empty Compose environment section
- **fixed** — Mark failed or timed-out Docker cleanup executions as finished and record their errors
- **fixed** — Require explicit confirmation before invitation magic links are redeemed, preventing link scanners and previews from consuming invitations
- **fixed** — Align team-scoped API responses and project access checks across sources, servers, projects, and environments
- **fixed** — Prevent newly introduced static settings from appearing as pending deployment changes after upgrades
- **fixed** — Complete local resource deletion even when remote Docker or backup cleanup failed
- **fixed** — Make team membership, invitation, token revocation, and source deletion changes roll back safely when part of the operation failed
- **fixed** — Release page scroll locking before destructive confirmation actions run, preventing stuck interfaces
- **changed** — Preserve the current page and query parameters when switching teams
- **changed** — Show warnings for pending proxy updates and unavailable Sentinel instances in server status indicators
- **changed** — Limit team deletion to owners, assign an owner to existing ownerless teams, and make blocking resources easier to find from the danger zone

##### Features

- Added configurable SMTP EHLO domains for instance and team email delivery ([#11398](https://github.com/coollabsio/coolify/pull/11398), closes [#11388](https://github.com/coollabsio/coolify/issues/11388)).
- Added API endpoints for viewing and updating instance-wide SMTP and Resend settings.
- Added manual upgrade controls to the Updates page and mobile navigation.

##### Fixes

- Applied the configured sender name and address to SMTP, Resend, test, transactional, and password-reset emails ([#11393](https://github.com/coollabsio/coolify/pull/11393), closes [#6073](https://github.com/coollabsio/coolify/issues/6073)).
- Respected disabled SMTP encryption in test emails ([#11384](https://github.com/coollabsio/coolify/pull/11384), closes [#5877](https://github.com/coollabsio/coolify/issues/5877) and [#6442](https://github.com/coollabsio/coolify/issues/6442)).
- Prevented Proton SMTP from folding long `From` headers ([#11400](https://github.com/coollabsio/coolify/pull/11400), closes [#11380](https://github.com/coollabsio/coolify/issues/11380)).
- Restricted API token visibility and revocation to the active team, and stopped expiration warnings for users who had left that team ([#11396](https://github.com/coollabsio/coolify/pull/11396), closes [#11390](https://github.com/coollabsio/coolify/issues/11390)).
- Persisted the target image and version before container recreation so upgrades kept the installed version aligned ([#11401](https://github.com/coollabsio/coolify/pull/11401), closes [#11389](https://github.com/coollabsio/coolify/issues/11389)).
- Restored generated Caddy labels for applications with configured domains ([#11397](https://github.com/coollabsio/coolify/pull/11397), closes [#11394](https://github.com/coollabsio/coolify/issues/11394)).
- Allowed domains to be added to services with an empty Compose `environment` section ([#11407](https://github.com/coollabsio/coolify/pull/11407), closes [#11381](https://github.com/coollabsio/coolify/issues/11381)).
- Marked failed or timed-out Docker cleanup executions as finished and recorded their errors ([#11408](https://github.com/coollabsio/coolify/pull/11408), closes [#11383](https://github.com/coollabsio/coolify/issues/11383)).
- Required explicit confirmation before invitation magic links were redeemed, preventing link scanners and previews from consuming invitations ([#11413](https://github.com/coollabsio/coolify/pull/11413), closes [#11375](https://github.com/coollabsio/coolify/issues/11375)).
- Aligned team-scoped API responses and project access checks across sources, servers, projects, and environments ([#11405](https://github.com/coollabsio/coolify/pull/11405)).
- Prevented newly introduced static settings from appearing as pending deployment changes after upgrades ([#11430](https://github.com/coollabsio/coolify/pull/11430), closes [#11426](https://github.com/coollabsio/coolify/issues/11426)).
- Completed local resource deletion even when remote Docker or backup cleanup failed.
- Made team membership, invitation, token revocation, and source deletion changes roll back safely when part of the operation failed.
- Released page scroll locking before destructive confirmation actions ran, preventing stuck interfaces.

##### Improvements

- Preserved the current page and query parameters when switching teams.
- Showed warnings for pending proxy updates and unavailable Sentinel instances in server status indicators.
- Limited team deletion to owners, assigned an owner to existing ownerless teams, and made blocking resources easier to find from the danger zone.


**Full Changelog**: https://github.com/coollabsio/coolify/compare/v4.3.9...v4.3.10