Release 1.53.0

[sfc-gh-dmatthews]

📚 Context

Docs for release 1.53.0 + JS bugfix for codeblocks

🧠 Description of Changes

JavaScript/Codeblocks

With the recent changes to codeblocks to allow language and filename headers, non-Python codeblocks were not displaying correctly. The correct syntax highlighting is now used. Additionally, a custom RST directive was added so that a filename could be passed to the frontend via a class. This allows setting a filename in the docstring for prettier and more consistent display of codeblocks.

Docs

• Update docstrings
• Update intermediate state of widget identity changes
• Update TypeScript template and CCV2 with new names (plus menu, page titles, and redirects)
• Update generate.py with new CCV2 classes/functions
• Release notes
• What's new
• Cheat sheet version
• Bump embedded apps to latest

Contribution License Agreement

By submitting this pull request you agree that all contributions to this project are made under the Apache 2.0 license.

[sfc-gh-dmatthews]

@kmcgrady I had to do a little bugfix on the codeblocks that I need reviewed. That non-Python blocks weren't coming through correctly, so I centralized the language dict and syntax highlighting imports to share between the <Code> component and the manual rendering that happens in <Autofunction>. While I was at it, I added support for filename, though it's a little hacky because it's passed in b64 in a class. But it makes it pretty:

[Copilot]

Pull request overview

This PR prepares documentation for the Streamlit 1.53.0 release and includes a JavaScript bugfix for code block rendering. The release includes major features like ASGI/Starlette support, caller's rights connections for Snowflake, and OIDC token access.

Changes:

• Updated Streamlit version from 1.52.0 to 1.53.0 across all requirements.txt files
• Added custom RST directive for filename display in code blocks with proper syntax highlighting
• Renamed custom component v2 TypeScript types for better semantic clarity (Component → FrontendRenderer, ComponentState → FrontendState, etc.)

Reviewed changes

Copilot reviewed 52 out of 53 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
python/directives/stcode.py	New custom RST directive to encode filenames in CSS classes for code blocks
lib/languageDisplayNames.js	Centralized language mapping for syntax highlighting across components
components/blocks/code.js	Refactored to use centralized language mappings and support filename display
components/blocks/autofunction.js	Enhanced to support multiple languages and filename display with async Prism imports
python/generate.py	Updated to register new directive and renamed CCV2 types
python/custom_components.json	Renamed custom component v2 types (Component → FrontendRenderer, etc.)
content/develop/api-reference/	Updated documentation pages for renamed custom component types
content/develop/quick-references/release-notes/	Added 1.53.0 release notes
content/menu.md	Updated menu with renamed component types and new 2026 release notes section
public/_redirects	Added redirects for renamed custom component URLs
python/api-examples-source/components.tailwind.py	Moved isolate_styles to component definition
Multiple requirements.txt files	Updated Streamlit version requirement to 1.53.0

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[sfc-gh-kmcgrady]

One comment to update

[sfc-gh-kmcgrady]

Should be 2026.

[sfc-gh-dmatthews]

😅