update to version 0.2.3

update version of pyright, fix warning
reported by new version.

docs/RELEASE-0.2.3.md

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+# Release v.0.2.3
+
+## What's Changed
+
+This update is a small bug-fix release to support changes
+that were made in the most recent version of the oobabooga server.
+
+It also updates to the latest version of the oobabot backend, which includes a minor feature to disable unsolicited replies
+entirely.  This is useful if you want to use the bot in a high-volume channel.
+
+## UI Bug Fixes
+
+* Downgrade gradio to version 3.33.1
+
+Gradio is the UI library which oobabooga uses.  It would specifically use version 3.33.1 of Gradio.
+
+Version 3.33.1, however, has known security vulnerabilities,
+[described here](https://github.com/gradio-app/gradio/security/advisories/GHSA-3qqg-pgqq-3695).  These would affect anyone who
+was using a "shared" gradio app.
+
+Because of this, oobabot-plugin would force an upgrade of gradio to 3.34.0, which fixed the security issues.  For a long
+time, oobabooga would still work fine with this slightly-updated
+version.
+
+However, a somewhat recent change to Oobabooga broke compatibility with the newer version of Gradio.  This means
+that with any security-patched version, model loading just
+doesn't work, no matter if oobabot is installed or not.
+
+Because this is a total breakage of the oobabooga server, we
+have no choice but to revert to the older version of Gradio
+until the issue is fixed.
+
+## New Backend Features (from the oobabot 0.2.3 backend)
+
+* Option to disable unsolicited replies entirely
+
+Unsolicited replies are still enabled by default, but you can now disable them entirely by changing this setting in your config.yml:
+
+```yaml
+  # If set, the bot will not reply to any messages that do not @-mention it or include a
+  # wakeword.  If unsolicited replies are disabled, the unsolicited_channel_cap setting will
+  # have no effect.
+  #   default: False
+  disable_unsolicited_replies: true
+```
+
+The objective of this change is to support cases where
+unsolicited replies are not desired, such as when the bot is used in a
+channel with a high volume of messages.
+
+## Bug Fixes / Tech Improvements
+
+* Preserve newlines when prompting the bot
+
+  In some cases the whitespace in user messages is important.  One case is
+described in the [issue 76, reported by @xydreen](https://github.com/aio-libs/aiohttp/security/advisories/GHSA-45c4-8wx5-qw6w).
+
+  When sending a prompt to the bot, we will now preserve any newlines
+that the bot itself had generated in the past.
+
+  We will still strip newlines from messages from user-generated messages,
+as otherwise they would have the ability to imitate our prompt format.
+This would let users so inclined to fool the bot into thinking a
+message was sent by another user, or even itself.
+
+### Full Changelog
+
+[All changes from 0.2.2 to 0.2.3: UI](https://github.com/chrisrude/oobabot-plugin/compare/v0.2.2...v0.2.3)
+[All changes from 0.2.1 to 0.2.3: Backend](https://github.com/chrisrude/oobabot/compare/v0.2.1...v0.2.3)