garble/CHANGELOG.md

Changelog

0.5.0 - 2022-01-06

This release of Garble adds initial support for the upcoming Go 1.18, continues support for Go 1.17.x, and drops support for Go 1.16.x. Note that building generic code isn't supported just yet.

Two breaking changes are introduced:

• Deprecate the use of GOPRIVATE in favor of GOGARBLE (see https://github.com/burrowers/garble/issues/276)
• garble reverse now requires a main package argument

Noteworthy changes include:

• Improve detection of reflect usage even further
• Support obfuscating some more standard library packages
• Improve literal obfuscation by using constant folding
• Add the -debug flag to log details of the obfuscated build
• Ensure the runtime package is built in a reproducible way
• Obfuscate local variable names to prevent shadowing bugs
• Fix and test support for using garble on 32-bit hosts

0.4.0 - 2021-08-26

This release of Garble adds support for Go 1.17.x while maintaining support for Go 1.16.x. A few other noteworthy changes are included:

• Support obfuscating literals in more edge cases with -literals
• Improve detection of reflect usage with standard library APIs
• Names exported for cgo are no longer obfuscated
• Avoid breaking consts using iota with -literals

Known bugs:

• obfuscating the entire standard library with GOPRIVATE=* is not well supported yet

0.3.0 - 2021-05-31

This release of Garble fixes a number of bugs and improves existing features, while maintaining support for Go 1.16.x. Notably:

• Make builds reproducible even when cleaning GOCACHE
• Detecting types used with reflection is more reliable
• Cross builds with GOPRIVATE=* are now supported
• Support conversion between struct types from different packages
• Improve support for type aliases
• Function names used with go:linkname are now obfuscated
• garble reverse can now reverse field names and lone filenames

Known bugs:

• obfuscating the entire standard library with GOPRIVATE=* is not well supported yet

0.2.0 - 2021-04-08

This release of Garble drops support for Go 1.15.x, which is necessary for some of the enhancements below:

• New: garble test allows running Go tests built with obfuscation
• New: garble reverse allows de-obfuscating output like stack traces
• Names of functions implemented in assembly are now obfuscated
• GOPRIVATE=* now works with packages like crypto/tls and embed
• garble build can now be used with many main packages at once
• -literals is more robust and now works on all of std

The README is also overhauled to be more helpful to first-time users.

Known bugs:

• obfuscating the entire standard library with GOPRIVATE=* is not well supported yet

0.1.0 - 2021-03-05

This is the first release of Garble. It supports Go 1.15.x and 1.16.x.

It ships all the major features that have worked for the past year, including:

• Obfuscation of all names, except methods and reflect targets
• Obfuscation of package import paths and position information
• Stripping of build and module information
• Support for Go modules
• Reproducible and cacheable builds
• Stripping of extra information via -tiny
• Literal obfuscation via -literals

Known bugs:

• obfuscating the standard library with GOPRIVATE=* is not well supported yet
• garble test is temporarily disabled, as it is currently broken