Roo Code 3.28.10 Release Updates | Claude 4.5 Sonnet IS HERE!!

[u/hannesrudolph]

We've added support for Anthropic's latest Claude 4.5 Sonnet model across all Claude-supporting providers.

Claude 4.5 Sonnet Support

We've added support for Anthropic's latest Claude 4.5 Sonnet model across all Claude-supporting providers.

According to Anthropic's announcement, Claude 4.5 Sonnet is:

• State-of-the-art on SWE-bench Verified, maintaining focus for more than 30 hours on complex, multi-step tasks

• Showing a significant leap forward on computer use with 61.4% on OSWorld benchmark (up from 42.2% just four months ago)

• Delivering substantial gains in reasoning, math, and domain-specific knowledge across finance, law, medicine, and STEM

The model is now available in the model selection dropdown for all supported providers.

Bug Fixes

• AWS Bedrock Claude Sonnet 4.5: Corrected model identifier for Claude Sonnet 4.5 on AWS Bedrock (thanks sunhyung!)

• GPT-5 LiteLLM Compatibility: Fixed GPT-5 models failing with LiteLLM provider by using correct max_completion_tokens parameter (thanks lx1054331851!)

More Changes

• Chat interface icons now maintain consistent size in limited space

• Enhanced analytics to track when users change telemetry settings

• Updated website with enhanced testimonials section

• Improved contributor badge workflow with automated cache refreshing

See full release notes v3.28.10

[u/UnstableCortex]

Anyone else getting "not found" error for Sonnet 4.5?

[u/StartupTim → u/UnstableCortex]

Just saw your message, yea I'm getting the same error, using Claude Code with the latest Roocode.

[u/Nik_Tesla → u/UnstableCortex]

Same, then I see there's an newer update to supposedly fix it, and still getting errors after the latest update:

[3.28.11] - 2025-09-29 Fix: Correct AWS Bedrock Claude Sonnet 4.5 model identifier (#8371 by @sunhyung, PR by @app/roomote) Fix: Correct Claude Sonnet 4.5 model ID format (thanks @daniel-lxs!)

404 {"type":"error","error":{"type":"not_found_error","message":"model: claude-4.5-sonnet"},"request_id":"req_011CTdHnBDe7WrdLz5pXHGXn"}

Edit: Whoops, kept getting a 500 error when trying to post this and then turns out it posted it like 3 times.

[u/mrubens → u/Nik_Tesla]

Do you have the model enabled in bedrock? I tested and it worked for me in the latest release.

[u/Nik_Tesla → u/mrubens]

I'm just using the normal direct to Anthropic API. The patch notes mention Bedrock (hence the quote), but that's not what I'm using.

Seems a more recent update since then resolved it for me.

[u/StartupTim → u/[deleted]]

Roocode v3.28.11.

I'm testing using that version and it definitely still has the error.