> ## Documentation Index
> Fetch the complete documentation index at: https://prod-mint.classiq.io/llms.txt
> Use this file to discover all available pages before exploring further.

# 0.64.0

Released on 2024-12-29.

## Upgrade Instructions

* [Python SDK](/getting-started/registration_installations#platform-version-updates)
* The IDE upgrades automatically.

## Enhancements

1. Improve error messages.

## Bug Fixes

1. Fix quantum bits raising an error when used in in-place assignments
   (`^=` and `+=`).
2. Fix quantum struct field access raising an error in lambdas.

## IDE Improvements

1. Classiq Thumbnail: Updated the Classiq thumbnail image!
2. Links on the IDE model page now directing to Classiq Library.
3. Modify the Quantum Programs URL so that the circuit ID is embedded in its path

### New Visualization:

Compact View:

* Clean up variable names in engine blocks.
* Corrected the spacing miscalculation for junction dots.
* Refined padding before allocation
* Hide labels in open functional blocks to create a more space-efficient
  display.
* Removed unnecessary dots and labels for low-level QC elements.