# Outline v1.10.0

- Product: Outline (https://whatsnew.fyi/product/outline)
- Vendor: Outline
- Date: 2026-09-02
- Version: v1.10.0
- Original notes: https://github.com/outline/outline/releases/tag/v1.10.0
- Permalink: https://whatsnew.fyi/product/outline/releases/v1.10.0

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** — Open two views in side-by-side split view from any menu or cmd+click
- **added** — Users with read-only access can now leave inline comments
- **added** — Added [[ trigger for mentioning or creating a document
- **added** — Documents can now be shown with numbered headings as a display preference
- **added** — Sidebar sections can now be reordered by dragging their headers
- **added** — Live document stats can now be displayed in the corner of the editor
- **added** — Danish and Indonesian language options
- **added** — Color swatches now have a hover card in the editor
- **added** — Web pages, Email (.eml), TextPack, and PDF files can now be imported
- **added** — Public share urls are now returned for documents in MCP
- **added** — Available icon names are now exposed as a resource in MCP
- **added** — Backlinks and References now have a context menu
- **added** — Collections can now be duplicated
- **changed** — All MCP tools now input and output Markdown consistently
- **changed** — Sidebar menu and navigation tree are faster
- **changed** — Local content search through the command menu is much faster and more accurate
- **changed** — Search queries are now faster
- **changed** — Creating a new document is faster
- **changed** — Pasting over an image in the editor now replaces it
- **changed** — Icon picker styling and usability was improved
- **changed** — Resizing the sidebar now has a rubber-banding effect

##### What's Changed

This release has a focus on increasing performance and reducing memory usage both on the client and server - but some fantastic new functionality crept in too, of course.

###### Highlights

* Open two views in side-by-side split view from any menu or `cmd`+`click` in https://github.com/outline/outline/pull/13044
* Users with read-only access can now leave inline comments in https://github.com/outline/outline/pull/13209
* Added `[[` trigger for mentioning or creating a document in https://github.com/outline/outline/pull/13402
* Documents can now be shown with numbered headings, as a display preference in https://github.com/outline/outline/pull/13522
* Sidebar sections can now be reordered by dragging their headers in https://github.com/outline/outline/pull/13505
* Live document stats can now be displayed in the corner of the editor in https://github.com/outline/outline/pull/13318
* Danish and Indonesian have been added to the available language options in https://github.com/outline/outline/pull/13221
* Color swatches now have a hover card in the editor in https://github.com/outline/outline/pull/13192
* Web pages, Email (`.eml`), TextPack, and PDF files can now be imported in https://github.com/outline/outline/pull/13229 https://github.com/outline/outline/pull/13235 https://github.com/outline/outline/pull/13302

###### MCP

* Public share urls are now returned for documents in https://github.com/outline/outline/pull/13043
* Available icon names are now exposed as a resource in https://github.com/outline/outline/pull/13048
* All MCP tools now input and output Markdown consistently in https://github.com/outline/outline/pull/13234
* Success payloads from MCP mutation tools now use less tokens in https://github.com/outline/outline/pull/13257
* Archived documents are now excluded from MCP search by default in https://github.com/outline/outline/pull/13518

###### Performance improvements

* The sidebar menu and navigation tree are faster by @Ali-ovo in https://github.com/outline/outline/pull/12873
* Server memory usage is reduced, with container memory best practices documented in https://github.com/outline/outline/pull/13042
* Boot migration check now runs as a separate process to reduce memory usage in https://github.com/outline/outline/pull/13049
* Drag and drop re-rendering has been optimized in https://github.com/outline/outline/pull/13114
* Local content search through the command menu is much faster and more accurate in https://github.com/outline/outline/pull/13115
* Nested policies are now briefly cached on the server in https://github.com/outline/outline/pull/13172
* Markdown import merge now uses an O(1) title lookup by @irontaek in https://github.com/outline/outline/pull/13117
* The `revisions.list` endpoint now loads less data in https://github.com/outline/outline/pull/13202
* `findByPk` now requires fewer database connections in https://github.com/outline/outline/pull/13214
* Route chunks are now preloaded on sidebar hover intent in https://github.com/outline/outline/pull/13263
* Search no longer needs to join on memberships in https://github.com/outline/outline/pull/13269
* Search queries are now faster in https://github.com/outline/outline/pull/13293
* The popularity score scan is now index-friendly and spread over an hour in https://github.com/outline/outline/pull/13306
* Relationships are no longer fetched for newly created documents in https://github.com/outline/outline/pull/13308
* Creating a new document is faster in https://github.com/outline/outline/pull/13310
* Collection structure locks now use `FOR NO KEY UPDATE` in https://github.com/outline/outline/pull/13314
* The document row lock is now taken after text processing in https://github.com/outline/outline/pull/13315
* Deleting a document subtree no longer triggers N+1 queries in https://github.com/outline/outline/pull/13311
* Mermaid is no longer part of the initial bundle in https://github.co

_[Truncated at 4000 characters — full notes: https://github.com/outline/outline/releases/tag/v1.10.0]_