Traits unload not worked for me. Log is attached.
Vaidas

On Sat, Jan 2, 2010 at 3:32 PM, Andreas Raab <andreas.raab at gmx.de> wrote:
> Folks -
>
> After a whole batch of changes, I'v put an updated trunk image up at
>
>        http://ftp.squeak.org/trunk/Squeak3.11-8720-alpha.zip
>
> Loads of great new stuff in there as you can see from the summary of changes
> below. Since the summary is getting a bit too long for my taste, I'm
> starting to only include the three most recent updates in email - if you
> want the full list please download the image and refer to the full summary
> in the "What's new" window. And if people disagree with this policy I'd be
> happy to change it again - I'm just trying to cut down on the spam factor a
> little. So let me know what you think.
>
> Cheers,
>  - Andreas
>
> (for the full history refer to the "What's new" section in the image)
>
> [------------------------- updated 01/02/10 ---------------------------]
>
> NanoTraits
> ----------
> A new traits implementation has been added. The implementation is
> significantly smaller and simpler than the old version and can be unloaded
> and reloaded without loss of information (i.e., traits flattened during
> unload are restored during traits reloading). To unload traits simply
> execute:
>        Trait unloadTraits.
> To restore traits load the traits package from the repository at
> source.squeak.org.
>
> TextDiffBuilder
> ---------------
> A new algorithm for producing text diffs has been added. The algorithm is
> smaller, faster, and provides better results compared to the previous
> implementation.
>
> Source / Changes Files
> ----------------------
> Sources and changes files are no longer limited to 32MB max size.
> ExpandedSourceFileArray provides an implementation for source files of
> arbitrary length, based on the CompiledMethodTrailer changes.
>
> CompiledMethodTrailer
> ---------------------
> Handling compiled method trailers for storing source code has been
> generalized. The new representation deals more explicitly with various forms
> of encodings (source pointer, temps-only, etc) and has room for future
> extensions (i.e., retrieval from other sources).
>
> Future Messages
> ---------------
> Support for the future/future: keywords has been added. Future messages
> enable sending messaging at a later point in time. Timed futures allow
> sending messages a specific number of miliseconds into the future, futures
> without arguments are executed at the earliest convenience. For example a
> message like:
>
> MyMorph>>mouseDown: event
>        self color: Color red.
>        (self future: 1000) color: Color white.
>
> will turn the given morph red and one second later back to white.
>
> [------------------------- updated 12/12/09 ---------------------------]
>
> Image Version
> -------------
> The new version scheme is now active. The image version number is the sum of
> all package versions. A stub package "Squeak-Version" has been added to
> define the "base" number for the version. This image is designated as
> "Squeak3.11.alpha".
>
> Morphic
> -------
> New window resizers better in tone with the general UI look. A new
> UserDialogBoxMorph for simple modal inform/confirm dialogs.
>
> Files
> -----
> StandardFilestream now performs read-buffering, dramatically speading up
> some operations like "Object compileAll" (2x improvement) as well as various
> other operations (scanning change lists etc).
>
> Numbers
> -------
> Implementations for Float #predecessor, #successor etc. Update to the
> compact class indexes of LargePositiveInteger and LargeNegativeInteger for
> Cog. Additional tests for all of the new features.
>
> Exceptions
> ----------
> OutOfMemory has been added as a standard exception being signaled when an
> allocation fails, replacing the previous signaling of the low space
> semaphore. Improved #ensure: performance avoiding remote context
> manipulation (via #tempAt:put:) in the default case.
>
> SUnit
> -----
> Faster execution by speeding up some low level operations (like
> allTestSelectors). Fixes for thumbnail creation which would leave open
> morphs around after some tests.
>
> Kernel
> ------
> The default hash for all objects is now a scaled identity has to avoid
> extreme degradations in speed when using large numbers of objects without
> explicit hash implementation in Dictionary and Set.
>
> [------------------------- updated 11/28/09 ---------------------------]
>
> Menu Bar
> --------
> Squeak now has a standard menu bar to make it easier to discover its
> contents for new users, replacing the World menu as the prime source for
> launching tools and other activities.
>
> Compiler
> --------
> Support for literal ByteArray syntax has been added. Byte arrays can now be
> written as #[1 2 3 "..."] instead of #(1 2 3) asByteArray  avoiding the need
> for conversion and a more compact default representation.
>
> Numbers
> -------
> Some prime related changed: Integer>>isPrime is now a deterministic test,
> Integer>>isProbablyPrime a probabilistic variant. Intger>>highBit and
> Integer>>lowBit have been sped up significantly.
>
> CRLF Handling
> -------------
> CR and LF are now treated interchangeably in rendering. Both cause a line
> break and both are not displayed. Various line related methods have been
> updated to deal with both CR and LF.
>
> Collections
> -----------
> Dictionary is no longer a subclass of Set. HashedCollection is the new
> superclass for both Set and Dictionary. Conversion of OrderedCollection and
> SortedCollection to Arrays has been sped up significantly.
>
>
>
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