# Panel 1.3.0 Release

**URL:** <https://discourse.holoviz.org/t/panel-1-3-0-release/6275>\
**Category:** Announcements\
**Tags:** panel\
**Created:** [October 25, 2023, 7:27am UTC](https://discourse.holoviz.org/t/panel-1-3-0-release/6275 "2023-10-25T07:27:20Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![philippjfr](https://discourse.holoviz.org/user_avatar/discourse.holoviz.org/philippjfr/32/7_2.png) [@philippjfr](https://discourse.holoviz.org/u/philippjfr)\
**Post date:** [October 25, 2023, 7:27am UTC](https://discourse.holoviz.org/t/panel-1-3-0-release/6275/1 "2023-10-25T07:27:20Z")

</div>

This minor release packs many exciting new features, specifically a new `panel.chat` subpackage containing components with powerful capabilities for interacting with LLM whether local or remote. Secondly this release adds compatibility with Param 2.0 bringing powerful new features including the ability to leverage reactive expressions using the `rx` wrapper and deeper support for reactively linking parameters, expressions and bound functions on Panel components. Lastly we overhauled the OAuth implementations adding support for code authorization and password based OAuth grant workflows and automatically refreshing the `access_token` when it expires. Beyond that this release includes many enhancements and numerous bug fixes. Special thanks to our first time contributors @aktech and @monodera and returning contributors @cdeil, @pierrotsmnrd and @TheoMartin. We also want to highlight the contribution of our new core contributor @ahuang11 for developing the chat components and recognize @MarcSkovMadsen and @philippjfr for their efforts on testing and improving these new components. Finally we thank the entire core team @Hoxbro, @MarcSkovMadsen, @maximlt, @ahuang11 and @philippjfr for their continued efforts.

### Feature

- Integrate support for param reactive expressions and expose `pn.rx` ([#5138](https://github.com/holoviz/panel/pull/5138), [#5582](https://github.com/holoviz/panel/pull/5582))
- Implement `ChatMessage`, `ChatFeed` and `ChatInterface` components ([#5333](https://github.com/holoviz/panel/pull/5333))
- Unify OAuth implementations and refresh `access_token` ([#5627](https://github.com/holoviz/panel/pull/5627))
- Add `ColorMap` widget ([#5647](https://github.com/holoviz/panel/pull/5647))

### Enhancement

- Add unit to widget in `HoloViews` pane if provided ([#5535](https://github.com/holoviz/panel/pull/5535))
- Allow registering global `on_session_destroyed` callback ([#5585](https://github.com/holoviz/panel/pull/5585))
- Implement `auto_grow` on `TextAreaInput` ([#5592](https://github.com/holoviz/panel/pull/5592))
- Add ability to redirect users from authorization callback ([#5594](https://github.com/holoviz/panel/pull/5594))
- Add support for `Path` object in `FileDownload` ([#5607](https://github.com/holoviz/panel/pull/5607))
- Add authorization\_code and password based OAuth login handlers ([#5547](https://github.com/holoviz/panel/pull/5547))
- Add format to `EditableFloatSlider` and `EditableIntSlider` ([#5631](https://github.com/holoviz/panel/pull/5631))
- Add support for decorating async functions with `pn.io.cache` ([#5649](https://github.com/holoviz/panel/pull/5649))
- Map `param.Bytes` to `FileInput` widget ([#5665](https://github.com/holoviz/panel/pull/5665))

### Bug fixes

- Fixes for `Column` invisible `scroll_button` taking space ([#5532](https://github.com/holoviz/panel/pull/5532))
- Guard undefined values from being set on `BrowserInfo` ([#5588](https://github.com/holoviz/panel/pull/5588))
- Fix thumbnails and use Panel design on index page ([#5595](https://github.com/holoviz/panel/pull/5595))
- Fix regressions in `TextEditor` caused by migration to shadow DOM ([#5609](https://github.com/holoviz/panel/pull/5609))
- Sync `location` state from request ([#5581](https://github.com/holoviz/panel/pull/5581))
- Fix `Select` widget label offset in Material Design ([#5639](https://github.com/holoviz/panel/pull/5639))
- Override token contents when reusing sessions ([#5640](https://github.com/holoviz/panel/pull/5640))
- Fix patching a table with a `DataFrame` with a custom index ([#5645](https://github.com/holoviz/panel/pull/5645))
- Set `FloatPanel` status correctly on initialization ([#5651](https://github.com/holoviz/panel/pull/5651))
- Fix patching table with `pd.Timestamp` values ([#5650](https://github.com/holoviz/panel/pull/5650))
- Ensure `notifications` and `browser_info` are loaded when `HoloViews` is loaded ([#5657](https://github.com/holoviz/panel/pull/5657))
- Gracefully handle resolution of invalid paths in `_stylesheets` ([#5666](https://github.com/holoviz/panel/pull/5666))
- Handle patching tables with `NaT` values ([#5675](https://github.com/holoviz/panel/pull/5675))

### Compatibility

- Add support for Python 3.12 and drop Python 3.8 support
- Upgrade to Param 2.0 as minimum required version
- Compatibility with Bokeh 3.3.0

### Documentation

- Improved docs on deploying with GCP ([#5531](https://github.com/holoviz/panel/pull/5531))
- Add Streamlit migration guide for chat components ([#5670](https://github.com/holoviz/panel/pull/5670))

---

<div class="post-metadata">

**Author:** ![Marc](https://discourse.holoviz.org/user_avatar/discourse.holoviz.org/marc/32/24_2.png) [@Marc](https://discourse.holoviz.org/u/Marc)\
**Post date:** [October 25, 2023, 2:13pm UTC](https://discourse.holoviz.org/t/panel-1-3-0-release/6275/2 "2023-10-25T14:13:09Z")

</div>

Check out [Panel Chat Examples](https://holoviz-topics.github.io/panel-chat-examples/)

[![panel-chat-examples-card-1600x800](https://discourse.holoviz.org/uploads/default/original/2X/6/661e4688f9fc73eba73bd9aeb06089b221f0304c.png)](https://holoviz-topics.github.io/panel-chat-examples/)