Sample Sources - Track the sources and provenance of your samples, such as organism or lab of origin.
Sample Timeline - Capture all events related to a specific sample in a convenient graphical timeline for auditing purposes and chain of custody tracking. Timeline information can be exported to Excel, TSV, and CSV formats.
labkey.experiment.saveBatch includes the batchPropertyList parameter
labkey.domain.createDesign now has a labkey.domain.createIndices helper and indices parameter
New methods for managing projects and folders: labkey.security.getContainers, labkey.security.createContainer, labkey.security.deleteContainer, labkey.security.moveContainer
Client Library Changes - Client libraries have a new versioning system, to support a release schedule decoupled from LabKey Server. To download client libraries distributions, see the topic API Resources.
JS API - The JS API has been re-implemented using TypeScript, and is now distributed as an official NPM package release with version 1.0.0.
Conditional Formats - Both the Python API and the R API now support conditional formats and QC states for datasets:
Define conditional formatting for fields.
Define QC states, and set QC states on study dataset data.
Module Loading Load file-based modules directly through the user interface without server restart.
Module Editing Edit module-based resources including SQL queries and R reports using the server user interface.
Proxy Servlets - Configure Proxy Servlets to act as reverse proxies for external web applications.
Changes to How JDBC Jars are Distributed - The JDBC jars (jtds.jar, postgresql.jar, mysql.jar) are now versioned and distributed inside the module directories like any other third-party jar, making it unnecessary to copy them to the CATALINA_HOME/lib directory during installation and upgrade. When you upgrade to 20.7, delete these JDBC jar files from CATALINA_HOME/lib to avoid conflicts.
Changes to Source Directory Structure - When building from source, the /optionalModules and /externalModules directories are no longer used. Move all contents from these directories into /server/modules. Note that this change only applies to developers building the server from source; for production servers /externalModules can still be used for deploying modules.
Changes to How Proteomics Binaries are Distributed - The proteomics binaries are now downloaded automatically without further action. This download can be skipped if desired.
Coming soon: Upgrade to Python 3.x: Version 2.0 of the LabKey Python client API will use Python 3.x and drop support for Python 2.x. Until you are able to update your own usage of Python, you will not want to upgrade your LabKey Python Client API. Learn more in the labkey-api-python documentation on GitHub.
Upgrade all LabKey Dependencies - We strongly recommend that, as part of your LabKey Server upgrade, you also upgrade all major LabKey dependencies to their latest point releases, these include: Java, Tomcat, and your database server.