Minor updates have just been completed for Labs 2a, 2b, 3a and 3b. The new versions are available now in the The Lab Packets folder on the Google Drive where the most current version of each lab always resides.
These updates don't change anything substantial but they do provide some clarifications that will help prevent some snags a few students would otherwise run into.
Also, in 3b, one of the updates reflects a minor change Salesforce recently made to their interface.
Please get students to use these versions for any labs they haven't completed yet.