• Update vendored renv with support for additional Linux distributions when
  normalizing and transforming Posit Package Manager URLs. (#725)
• Improve package installation in a multi-process environment. Do less work
  when a target package is in the cache and write package DESCRIPTION
  updates to temporary files before persisting. (#720)
• When determining the package source, consider biocViews before
  Repository. Recent Bioconductor package DESCRIPTION files include the
  Repository field, which caused Packrat to believe that those packages
  originated from a CRAN-like repository, not Bioconductor. (#729)
• Attempt package downloads from multiple package repository archive layouts.
  Paths used by CRAN-like, Nexus, and older Artifactory repositories are
  supported. (#583)
• Attempt URL downloads fewer times before giving up.
• Rename files downloaded from a package repository when the name is not
  name_1.2.3.tar.gz, as can happen with r-universe. (#731)

Packrat 0.9.1

• Fix an issue where Packrat would fail to restore packages installed from
  subdirectories of SCM repositories (GitHub, GitLab, Bitbucket). (#704)

Packrat 0.9.0

• Packrat now supports restoring packages hosted in private repositories on
  GitHub, GitLab, and Bitbucket. To enable this, set the option
  packrat.authenticated.downloads.use.renv to TRUE. curl must be available
  on your system to take advantage of this capability. For authenticated
  downloads, you must make GITHUB_PAT, GITLAB_PAT, and/or
  BITBUCKET_USERNAME and BITBUCKET_PASSWORD available in Packrat's
  environment, as appropriate. These environment variables are hidden from
  package install processes.
• Correctly discover dependencies in a project beneath a directory hierarchy
  containing "data". (#684)
• Take an renv update to include a fix regarding download.file.method
  handling. (#683)
• Packrat now masks environment variables commonly used for Git service account
  authentication from subprocesses used to install packages. This behavior can
  be disabled by setting the option packrat.mask.git.service.envvars to
  FALSE. (#682)
• Users can mask additional arbitrary environment variables from the sub-process
  that run package installation tasks, by setting the option
  packrat.masked.envvars to a character vector of variable names to mask.
  These variables are masked whether or not packrat.mask.git.service.envvars
  has been set to FALSE. (#682)
• Change how Packrat selects a tar binary. Previously, Packrat would force the
  use of R's internal tar implementation, which cannot handle long filepaths.
  Now, if a TAR environment variable exists, Packrat will use that. Otherwise,
  it will either look for a tar binary on the PATH on Unix, or look for the
  system tar on Windows. If no binary is found in those locations, it will use
  R's internal tar implementation. (#648)
• Allow GitLab downloads from repositories having paths (#699).
• Update some RStudio references to Posit.

Packrat 0.8.1

• Fixed a bug preventing successful downloads of private GitLab and Bitbucket
  archives during restore. (#671)

• Allow GitLab downloads from private repos to be authenticated with
  GITLAB_PAT environment variable. This method of authentication replaces
  the GITLAB_USERNAME and GITLAB_PASSWORD variables, which are not
  supported by GitLab. (#673)

Packrat 0.8.0

• Stop using devtools::github_pat to obtain an (optional) GITHUB_PAT
  environment variable value. The github_pat function was removed in
  devtools-2.4.3. (#651)

• Use authenticated downloaders for GitHub, GitLab, and Bitbucket when the
  httr package is installed and the appropriate credentials are available.

• Provide more information about authenticated download failures.

• Handle GitLab packages located in a repository sub-directory. (#660)

• Hash RemoteType: url packages as though they came from a CRAN-like
  repository. Improves cache reuse for packages originally installed by
  remotes<2.0.2. (#652)

• The packrat::set_opts function and packrat::opts single-option setter no
  longer overwrite previously written in-memory state. (#655)

• The 'packrat::opts$ignored.packages()' project option ignores recursive
  package dependencies in addition to direct package dependencies. (#654)

• Use a bundled renv to perform dependency detection. Avoids a number of
  evaluation issues and side-effects. (#644)

• Take an renv update to avoid an implicit dependency on the quarto package for all *.qmd content.

Packrat 0.7.0

• Fixed an issue where Packrat could inadvertently execute non-R code chunks
  when scanning R Markdown documents for dependencies.

• Fixed an issue where a knitr warning would be emitted when scanning an
  R Markdown document containing unknown or un-registered knitr engines.
  (#639)

• Packrat identifies additional code dependencies, including package
  references used to define function argument default values. (#630)

• Added support for extracting R package dependencies from Quarto documents
  and websites.

Packrat 0.6.0

• BREAKING CHANGE: The default Packrat cache directory has changed, and now
  includes an R version suffix. This helps avoid populating a single cache with
  versions of packages compiled for different versions of R (as there is no
  guarantee that packages compiled for e.g. R 3.4.x will work with R 3.5.x). If
  you'd like to migrate your old Packrat cache directory, you can move the
  directory at dirname(packrat:::appDataDir()) to packrat:::appDataDir().

• Packrat now only queries binary repositories for available packages during
  installation if getOption("pkgType") != "source".

• Packrat no longer attempts to unload packages loaded from the user library
  after calling packrat::init(), as this could fail in a myriad of cases.
  (To ensure proper isolation of the session, you should still restart R after
  invoking packrat::init()).

• Packrat now properly annotates the RemoteType field when downloading packages
  from GitLab and Bitbucket. (#564)

• Packrat no longer removes old source packages during a restore. (#560)

• Added support for GitLab: packages downloaded from GitLab can now be
  restored by Packrat. (#562, @akgold)

• Fixed an issue where tangled R code chunks containing invalid R code prevented
  Packrat from finding any dependencies. Packrat will now look for package
  dependencies within each code chunk independently. (#551)

• Packrat no longer sets LC_ALL=C when building source packages, as this can
  lead to errors when building packages containing non-ASCII text. (#545)

• Fixed an issue where ignored packages would still be queried by
  packrat::unused_packages(), which affected other APIs like packrat::clean().
  (#525)

• Fixed an issue where newly-added project options did not get their correct
  default value when no entry existed within the packrat.opts file. (#496)

• Improve performance of dependency processing. (#615)

• Infer package dependencies from requireNamespace() and loadNamespace()
  only when the package name is character input. (#602)

Packrat 0.5.0

• Packrat now supports both of BiocManager and BiocInstaller (as used for
  discovering the Bioconductor repositories active for the current project).
  BiocManager will be used for R >= 3.6.0; BiocInstaller will be used otherwise.

• The R option packrat.dependency.discovery.disabled can be set to TRUE to
  disable dependency discovery in projects. This can be useful if you find
  Packrat's dependency discovery is slow (as it can be in projects containing
  a large number of R Markdown files). (#513, @ras44)

• The scheme used for hashing packages that enter the Packrat cache has
  changed -- now, a defined ordering of fields is used when hashing a
  package's DESCRIPTION file. Note that this implies a package may need to be
  re-cached on restore, in the case that its hash has changed. This change
  should not affect any existing packages in the cache. (#505, @aronatkins)

• packrat::with_extlib() now works with no packages provided;
  both with and without this option, the new behavior is that expr
  is executed in an environment where the original (not packrat)
  library search path is in place.

• A project is now only considered 'packified' if it has both a Packrat
  lockfile as well as the associated autoloader in the project .Rprofile.

• Calling packrat::init() on a project that already contains a Packrat
  lockfile no longer attempts to re-snapshot and restore the project.

• Packrat now supports R packages available on BitBucket, courtesy of a PR from
  @mariamedp. (#481)

• Added the project option symlink.system.packages: users can now configure
  whether base R packages from the system library are symlinked into a private
  library packrat/lib-R. Disabling this can be useful if you intentionally
  want Packrat to use packages that have been installed into the system library.

• Fixed an issue where attempts to snapshot could fail when
  the R libraries live on a network drive.

Packrat 0.4.9-1

• Fix test errors on CRAN.