I released Iceberg version 0.6. It includes a lot of small tweaks and fixes, but the most important inclusion is tonel file format which aims to replace file tree.

What is Tonel? (https://github.com/pharo-vcs/tonel)

Tonel is a file-per-class file format for monticello repositories. It���s purpose is to reduce the amount of files touched each operation, make the IO faster an compact the repositories database. 

It has also as an objective to offer an ���easy-to-read��� format, so people wanting to understand a chunk of code will recognise it easily. 

For testing, I migrated several of my projects to Tonel and I���ve been using it, you can see some as examples: 

https://github.com/estebanlm/pharo-tonel (this was just an example and it has some minimal errors already fixed)

We plan to migrate Pharo development to tonel to address some problems we have: 

- since it has to read/write a lot of files, IO operations are slow

- and even much more slow in Windows

- Windows also has a problem with longpaths.

Iceberg 0.6 will be integrated to Pharo7 soon :)

To update Pharo 6.1, there are instructions in the readme: https://github.com/pharo-vcs/iceberg/blob/master/README.md

now, if you wan to migrate your projects to Tonel (from FileTree), here is a script you can use: https://github.com/pharo-vcs/tonel/blob/master/MigrateFromFileTree.md

btw, tonel is independent of Iceberg and can be used with plain Monticello (but it is a metadaless format, history will reside on git, not on monticello).

cheers, 

Esteban