> ## 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.

# 0.66.0

Released on 2025-01-20.

## Upgrade Instructions

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

# Enhancements

1. The `num_qubits` argument of function `allocate` is now optional. If it is
   not specified, it is inferred automatically according to the quantum type
   of the allocated variable. Example:

   [comment]: DO_NOT_TEST

   ```python theme={null}
   q = QBit()
   allocate(q)  # allocates one qubit for variable 'q'
   ```

2. The `execute` parameter of the `QLayer` object is now optional. Example:

   [comment]: DO_NOT_TEST

   ```python theme={null}
   QLayer(quantum_program, post_process)
   ```

## Deprecations

The simulator name "nvidia\_state\_vector\_simulator" has been removed. Please use
ClassiqNvidiaBackendNames.SIMULATOR or "nvidia\_simulator" instead.

## IDE Changes

1. The Application Configuration Panel used for editing examples in the Built-in Apps folder has been removed.
2. Patched dependencies: Katex.