bump version (microsoft#2999)

Co-authored-by: Li Jiang <bnujli@gmail.com>

update notebook wording and format (microsoft#2991)

Fix missing messages in Gemini history (microsoft#2906)

* fix missing message in history

* fix message handling

* add list of Parts to Content object

* add test for gemini message conversion function

* add test for gemini message conversion

* add message to asserts

* add safety setting support for vertexai

* remove vertexai safety settings

fix typo and update news (microsoft#2825)

* fix typo and update news

* add link

* update link

* fix metadata

* tag

Re-query speaker name when multiple speaker names returned during Gro…

…up Chat speaker selection (microsoft#2304)

* Added requery_on_multiple_speaker_names to GroupChat and updated _finalize_speaker to requery on multiple speaker names (if enabled)

* Removed unnecessary comments

* Update to current main

* Tweak error message.

* Comment clarity

* Expanded description of Group Chat requery_on_multiple_speaker_names

* Reworked to two-way nested chat for speaker selection with default of 2 retries.

* Adding validation of new GroupChat attributes

* Updates as per @ekzhu's suggestions

* Update groupchat

- Added select_speaker_auto_multiple_template and select_speaker_auto_none_template
- Added max_attempts comment
- Re-instated support for role_for_select_speaker_messages
-

* Update conversable_agent.py

Added ability to force override role for a message to support select speaker prompt.

* Update test_groupchat.py

Updated existing select_speaker test functions as underlying approach has changed, added necessary tests for new functionality.

* Removed block for manual selection in select_speaker function.

* Catered for no-selection during manual selection mode

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Co-authored-by: Chi Wang <wang.chi@microsoft.com>

[Re-Opened] Support for PGVector Database in Autogen (microsoft#2439)

* PGVector Contrib Initial Commit - KnucklesTeam:autogen:pgvector_contrib fork

* Update website/docs/ecosystem/pgvector.md

Co-authored-by: Chi Wang <wang.chi@microsoft.com>

* Updated qdrant installation instructions.

* Fixed openai version.

* Added dependencies to install for qdrant and pgvector in contrib tests.

* Added dependencies to install for qdrant and pgvector in contrib tests.

* Cleaned up dependencies.

* Removed flaml out of setup.py. Used only for notebook example.

* Added PGVector notebook link

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Co-authored-by: Chi Wang <wang.chi@microsoft.com>

update cost info (microsoft#2401)

fix local test failures (microsoft#2386)

* fix local test failures

* set skip

Fix docs related to Azure OpenAI's "model" (microsoft#2315)

* gitfu to get gh verified commits

* revive lost point

* fixed openai model related docs

* newline EOF

fix cost (microsoft#2292)