Latest version: CASA 5.7/6.1

The transition from CASA 5 to CASA 6 is based on the switch from Python 2 to Python 3. To ease in this transition, CASA is releasing version 6.1 (Python 3) simultaneously with CASA 5.7 (Python 2). The task and tools functionality of CASA 6.1 and 5.7 are scientifically equivalent.

   LINUX RedHat

   Mac OSX

CASA 6: pip-wheel installation

CASA 6 has been reorganized to offer a modular approach, where users have the flexibility to build CASA tools and tasks in their Python environment. CASA 6 modules can be installed through pip-wheels in Python, or downloaded as an all-inclusive CASA distribution that mimics the historical CASA version. Instructions on how to install CASA 6 can be found in CASA Docs: CASA 6 Installation and Usage

Release Information

The Release Notes and Known Issues of the 5.7/6.1 release are available in

Hardware Requirements

The reduction of radio data in CASA can be demanding in terms of hardware, and a balanced configuration regarding memory, processing power and file I/O may be required to efficiently run CASA. Recommendations on the CASA hardware requirements for VLA and ALMA data can be found on this 'Hardware Requirements' page.
DISCLAIMER: CASA now collects usage statistics including task execution timings and crash reports. This data will be periodically sent back to NRAO to guide future priorities and decision making. All collection is anonymous and contains no scientific or personal data. For more information, or instructions on how to disable telemetry recording, see CASA Docs