Fbs

*This improvement is only included in [fbs Pro](https://build-system.fman.io/pro).*

fbs used to only support app version numbers of the form `1.2.3`. This was not enough for some use cases. Now, you can also give your application a four-tuple version number of the form `1.2.3.4`. Please note however that this won't work on macOS, because the OS restricts to 3-tuples.

*This improvement is only included in [fbs Pro](https://build-system.fman.io/pro).*

`fbs freeze` gave the following error:

> FileNotFoundError: Could not find msvcr110.dll on your PATH. Please install the Visual C++ Redistributable for Visual Studio 2012 from:
https://www.microsoft.com/en-us/download/details.aspx?id=30679

Installing the indicated redistributable did not solve the problem.

This version of fbs Pro fixes the instructions that are necessary to solve the problem.

fbs release current


Fixes 211.

Thank you to whattheserver and luigifreitas for their PRs.

This improvement is only included in [fbs Pro](https://build-system.fman.io/pro).

This release makes `fbs sign` on Windows more robust with respect to flakiness in the underlying invocation of Microsoft's signtool. It also adds a new setting `windows_sign_server` that can be used to configure the timestamp server used for signing.

Specifically, this release makes errors of the following form less likely:


SignTool Error: The specified timestamp server either could not be reached or returned an invalid response.
SignTool Error: An error occurred while attempting to sign: C:\....

*This improvement is only included in [fbs Pro](https://build-system.fman.io/pro).*

fbs Pro users had no easy way to install fbs Pro in `buildvm` virtual machines. This release fixes this: You can now add `fbs_pro.tar.gz` into `requirements/` and add `fbs_pro.tar.gz` to `requirements/base.txt` to have it installed in the VM.

*This improvement is only included in [fbs Pro](https://build-system.fman.io/pro).*

Commands such as `fbs buildvm ubuntu` were plagued by several problems due to outdated Python and OS versions. This release fixes this.