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4.6.2
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@b-cooper b-cooper released this 29 Sep 17:51
· 6086 commits to edge since this release
v4.6.2
dc3d769

Version 4.6.2 of the Opentrons App and OT-2 Software is a release focused on stability and behind-the-scenes improvements to our software as well as a useful experimental command line utility.

Technical change log

Opentrons App

This is a quiet release on the app front as we make some behind-the-scenes improvements to how the app is built, so we don't have any changes to report here.

OT-2 Software

New Features

  • The opentrons_simulate command-line application can now estimate protocol duration using the -e option. This feature is experimental, but very cool!

Bug Fixes

  • If a protocol is canceled mid-run while there is a tip on a pipette, the tip will be dropped prior to resetting the plunger to avoid contaminating the pipette internals with liquids.
  • Fixed a movement planning issue that could cause multi-channel pipettes to collide with the deck when changing pipettes.
  • Fixed an issue that could cause the protocol to proceed before an awaited temperature module target was actually hit.
  • Fixed a few issues with the faster protocol analysis method added in the 4.5.0 release.
  • Fixed type annotations of the ProtocolContext classes.

4.6.1 to 4.6.2

The 4.6.2 hotfix release contains a small bug fix for an issue where the OT-2's max speed settings within a protocol will be ignored.

4.6.0 to 4.6.1

The 4.6.1 hotfix release contains a small configuration change to fix an issue with installing the opentrons PyPI package on computers running Python 3.8 and later. It does not affect the software running on your OT-2.

Known Issues

In 4.6.2 and previous releases, the OT-2 will only use TLS 1.0 for WPA2 Enterprise association. Some RADIUS servers have disabled this version of TLS; it must be enabled to connect the OT-2 to a RADIUS-secured network.

Since version 4.5.0, if a thermocycler encounters an error, the robot will be unable to recognize the error state. If your thermocycler starts blinking its yellow LED, you should cancel your protocol. See issue 8393 for more details.

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