# Mermaid 11.13.0

- Product: Mermaid (https://whatsnew.fyi/product/mermaid)
- Vendor: Mermaid
- Date: 2026-03-09
- Version: 11.13.0
- Original notes: https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.13.0
- Permalink: https://whatsnew.fyi/product/mermaid/releases/11.13.0

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** — Export the AsyncIconLoader, SyncIconLoader, and IconLoader types
- **added** — Add venn-beta diagram
- **added** — Add half-arrowheads (solid & stick) and central connection support
- **added** — Add Ishikawa diagram (ishikawa-beta)
- **added** — Allow to put notes in namespaces on classDiagram
- **deprecated** — Deprecate flowchart.htmlLabels in favor of root-level htmlLabels in Mermaid config
- **fixed** — Prevent HTML tags from being escaped in sandbox label rendering
- **fixed** — Support edge animation in hand drawn look
- **fixed** — ER diagram edge label positioning
- **fixed** — Resolved parsing error where direction TD was not recognized within subgraphs
- **fixed** — Fixed treemap classDef style application to properly apply user-defined styles
- **fixed** — Correct viewBox casing and make SVGs responsive
- **fixed** — Improve participant parsing and prevent recursive loops on invalid syntax
- **fixed** — Respect markdownAutoWrap: false to prevent text auto-wrapping in flowchart markdown labels with htmlLabels enabled
- **fixed** — Architecture diagram lines should now have the correct length
- **fixed** — Support the htmlLabels Mermaid config value whenever possible
- **fixed** — Prevent browser hang when using multiline accDescr in XY charts
- **fixed** — Correct block positioning when nested blocks span multiple columns
- **fixed** — Correct BT orientation arc sweep flags in gitGraph drawArrow()

###### Minor Changes

-   [#7352](https://github.com/mermaid-js/mermaid/pull/7352) [`d6db0b0`](https://github.com/mermaid-js/mermaid/commit/d6db0b039654f6e122c6098821bc75f2910915e3) Thanks [@remcohaszing](https://github.com/remcohaszing)! - feat: Export the `AsyncIconLoader`, `SyncIconLoader`, and `IconLoader` types.

-   [#5932](https://github.com/mermaid-js/mermaid/pull/5932) [`cdacb0b`](https://github.com/mermaid-js/mermaid/commit/cdacb0b30171bd15223c008a56c09f7ece842940) Thanks [@exoego](https://github.com/exoego)! - feat: Add venn-beta diagram

-   [#6789](https://github.com/mermaid-js/mermaid/pull/6789) [`73e9849`](https://github.com/mermaid-js/mermaid/commit/73e9849f993cd766eecddf349e335a4473560f37) Thanks [@omkarht](https://github.com/omkarht)! - feat: Add half-arrowheads (solid & stick) and central connection support

-   [#7387](https://github.com/mermaid-js/mermaid/pull/7387) [`acce4db`](https://github.com/mermaid-js/mermaid/commit/acce4db7a1bd8801666f1a9667a63e4010ec2020) Thanks [@exoego](https://github.com/exoego)! - feat: Add Ishikawa diagram (ishikawa-beta)

-   [#6995](https://github.com/mermaid-js/mermaid/pull/6995) [`9745f32`](https://github.com/mermaid-js/mermaid/commit/9745f325cb9e1967640f0e85da193a2f820634f1) Thanks [@darshanr0107](https://github.com/darshanr0107)! - feat: Deprecate [`flowchart.htmlLabels`](https://mermaid.js.org/config/schema-docs/config-defs-flowchart-diagram-config.html#htmllabels) in favor of [root-level `htmlLabels`](https://mermaid.js.org/config/schema-docs/config.html#htmllabels) in Mermaid config

-   [#5814](https://github.com/mermaid-js/mermaid/pull/5814) [`2dd29be`](https://github.com/mermaid-js/mermaid/commit/2dd29bee254a5b89c00eb0b0da1bcf7fe96ce46c) Thanks [@kairi003](https://github.com/kairi003)! - feat: allow to put notes in namespaces on classDiagram

###### Patch Changes

-   [#7075](https://github.com/mermaid-js/mermaid/pull/7075) [`96a766d`](https://github.com/mermaid-js/mermaid/commit/96a766dcdbb7d6e3043344a2ee3f1b64ba7a62c3) Thanks [@darshanr0107](https://github.com/darshanr0107)! - fix: Prevent HTML tags from being escaped in sandbox label rendering

-   [#6843](https://github.com/mermaid-js/mermaid/pull/6843) [`32723b2`](https://github.com/mermaid-js/mermaid/commit/32723b2de13474d7d13e9292e6f801e9874936ab) Thanks [@saurabhg772244](https://github.com/saurabhg772244)! - fix: Support edge animation in hand drawn look

-   [#7453](https://github.com/mermaid-js/mermaid/pull/7453) [`a60e615`](https://github.com/mermaid-js/mermaid/commit/a60e615bc31edeb1d623d096117812c0f721f2f8) Thanks [@darshanr0107](https://github.com/darshanr0107)! - fix: ER diagram edge label positioning

-   [#6989](https://github.com/mermaid-js/mermaid/pull/6989) [`1a9d45a`](https://github.com/mermaid-js/mermaid/commit/1a9d45abf0a991c40985021e8b523c32b46dd897) Thanks [@darshanr0107](https://github.com/darshanr0107)! - fix: Resolved parsing error where direction TD was not recognized within subgraphs

-   [#7178](https://github.com/mermaid-js/mermaid/pull/7178) [`96ca7c0`](https://github.com/mermaid-js/mermaid/commit/96ca7c090f28eea458027e6871903d789575cfa1) Thanks [@omkarht](https://github.com/omkarht)! - fix(treemap): Fixed treemap classDef style application to properly apply user-defined styles

-   [#7076](https://github.com/mermaid-js/mermaid/pull/7076) [`60f6331`](https://github.com/mermaid-js/mermaid/commit/60f633101cd2e55ee80ad2250ae57d4c970430e5) Thanks [@darshanr0107](https://github.com/darshanr0107)! - fix: Correct viewBox casing and make SVGs responsive

-   [#7055](https://github.com/mermaid-js/mermaid/pull/7055) [`fa15ce8`](https://github.com/mermaid-js/mermaid/commit/fa15ce8502d2f1d72787998d9d944c5a98b992dd) Thanks [@darshanr0107](https://github.com/darshanr0107)! - fix: Improve participant parsing and prevent recursive loops on invalid syntax

-   [#7276](https://github.com/mermaid-js/mermaid/pull/7276) [`33c7c72`](https://github.com/mermaid-js/mermaid/commit/33c7c7206400509537a28f15d0e

_[Truncated at 4000 characters — full notes: https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.13.0]_