12123 ----- - Issue 2890: Some isNil ifTrueifFalse -> ifNil:. Thanks Guillermo Polito. - Issue 2907: undeprecate Smalltalk os so that we can write Smalltalk os versionName and Smalltalk os platformName - Issue 2896: Make sure system notifications for Smalltalk are up-to-date. Thanks Eliot Miranda and Adrian Leinhard. - Issue 2893: Network bugs. Thanks Andreas Raab.