Conan

- Feature: support 7.1 clang version (https://github.com/conan-io/conan/pull/5492)
- Bugfix: When a profile was detected, for GCC 5.X the warning message about the default `libcxx` was not shown. (https://github.com/conan-io/conan/pull/5524)
- Bugfix: Update python-dateutil dependency to ensure availability of `dateutil.parser.isoparse` (https://github.com/conan-io/conan/pull/5485)
- Bugfix: Solve regression in ``conan info <ref>`` command, incorrectly reading the graph_info.json and lockfiles (https://github.com/conan-io/conan/pull/5481)
- Bugfix: Trailing files left when packages are not found in conan info and install, restricted further installs with different case in Windows, without ``rm -rf ~/.conan/data/pkg_name`` (https://github.com/conan-io/conan/pull/5480)
- Bugfix: The lock files mechanism now allows to update a node providing new information, like a retrieved package revision, if the "base" reference was the same. (https://github.com/conan-io/conan/pull/5467)
- Bugfix: search command table output has invalid HTML code syntax (https://github.com/conan-io/conan/pull/5460)

- Feature: Better UX for no_proxy (3943) (https://github.com/conan-io/conan/pull/5438). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1347)
- Feature: Show warning when URLs for remotes is invalid (missing schema, host, etc). (https://github.com/conan-io/conan/pull/5418)
- Feature: Implementation of lockfiles. Lockfiles store in a file all the configuration, exact versions (including revisions), necessary to achieve reproducible builds, even when using version-ranges or package revisions. (https://github.com/conan-io/conan/pull/5412). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1350)
- Feature: Change progress bar output to tqdm to make it look better (https://github.com/conan-io/conan/pull/5407)
- Feature: Define 2 new modes and helpers for the package binary ID: ``recipe_revision_mode`` and ``package_revision_mode``, that take into account the revisions. The second one will use all the information from dependencies, resulting in fully deterministic and complete package IDs: if some dependency change, it will be necessary to build a new binary of consumers (https://github.com/conan-io/conan/pull/5363). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1345)
- Feature: Add apple-clang 11.0 to settings.yml (5328) (https://github.com/conan-io/conan/pull/5357). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1327)
- Feature: SystemPackageTool platform detection (5026) (https://github.com/conan-io/conan/pull/5215). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1291)
- Fix: Enable the definition of revisions in conanfile.txt (https://github.com/conan-io/conan/pull/5435)
- Fix: Improve resolution of version ranges for remotes (https://github.com/conan-io/conan/pull/5433)
- Fix: The conan process returns `6` when a `ConanInvalidConfiguration` is thrown during `conan info`. (https://github.com/conan-io/conan/pull/5421)
- Fix: Inspect missing attribute is not an error (3953) (https://github.com/conan-io/conan/pull/5419)
- Fix: Allow --build-order and --graph together for conan info (3447) (https://github.com/conan-io/conan/pull/5417)
- Fix: Handling error when reference not found using conan download (https://github.com/conan-io/conan/pull/5399)
- Fix: Update Yum cache (5370) (https://github.com/conan-io/conan/pull/5387)
- Fix: Remove old folder for conan install (5376) (https://github.com/conan-io/conan/pull/5384)
- Fix: Add missing call to super constructor to `VirtualEnvGenerator`. (https://github.com/conan-io/conan/pull/5375)
- Fix: Force forward slashes in the variable `$PROFILE_DIR` (https://github.com/conan-io/conan/pull/5373). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1333)
- Fix: Accept a list for the requires attribute (https://github.com/conan-io/conan/pull/5371). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1332)
- Fix: Remove packages when version is asterisk (5297) (https://github.com/conan-io/conan/pull/5346)
- Fix: Make conan_data visible to pylint (5327) (https://github.com/conan-io/conan/pull/5337)
- Fix: Improve the output to show the remote (or cache) that a version range is resolved to. (https://github.com/conan-io/conan/pull/5336)
- Fix: Deprecated ``conan copy|download|upload <ref> -p=ID``, use ``conan .... <pref>`` instead (https://github.com/conan-io/conan/pull/5293). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1317)
- Fix: `AutoToolsBuildEnvironment` is now aware of `os_target` and `arch_target` to calculate the gnu triplet when declared. (https://github.com/conan-io/conan/pull/5283)
- Fix: Better message for gcc warning of libstdc++ at default profile detection (https://github.com/conan-io/conan/pull/5275)
- Bugfix: `verify_ssl` field in SCM being discarded when used with `False` value. (https://github.com/conan-io/conan/pull/5441)
- Bugfix: enable retry for requests (https://github.com/conan-io/conan/pull/5400)
- Bugfix: Allow creation and deletion of files in ``tools.patch`` with ``strip>0`` (https://github.com/conan-io/conan/pull/5334)
- Bugfix: Use case insensitive comparison for SHA256 checksums (https://github.com/conan-io/conan/pull/5306)

- Feature: Print nicer error messages when receive an error from Artifactory. (https://github.com/conan-io/conan/pull/5326)
- Fix: Make ``conan config get storage.path`` return an absolute, resolved path (https://github.com/conan-io/conan/pull/5350)
- Fix: Skipped the compiler version check in the cmake generator when a `-s compiler.toolset` is specified (Visual Studio). (https://github.com/conan-io/conan/pull/5348)
- Fix: Constraint transitive dependency ``typed-ast`` (required by astroid) in python3.4, as they stopped releasing wheels, and it fails to build in some Windows platforms with older SDKs. (https://github.com/conan-io/conan/pull/5324)
- Fix: Accept v140 and VS 15.0 for CMake generator (5318) (https://github.com/conan-io/conan/pull/5321)
- Fix: Accept only .lib and .dll as Visual extensions (5316) (https://github.com/conan-io/conan/pull/5319)
- Bugfix: Do not copy directories inside a symlinked one (https://github.com/conan-io/conan/pull/5342)
- Bugfix: Conan was retrying the upload when failed with error 400 (request error). (https://github.com/conan-io/conan/pull/5326)

- Feature: The `conan upload` command can receive now the full package reference to upload a binary package. The `-p` argument is now deprecated. (https://github.com/conan-io/conan/pull/5224). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1300)
- Feature: Add hooks `pre_package_info` and `post_package_info` (https://github.com/conan-io/conan/pull/5223). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1293)
- Feature: New build mode `--build cascade` that forces building from sources any node with dependencies also built from sources. (https://github.com/conan-io/conan/pull/5218). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1296)
- Feature: Print errors and warnings to `stderr` (https://github.com/conan-io/conan/pull/5206)
- Feature: New ``conan new --template=mytemplate`` to initialize recipes with your own templates (https://github.com/conan-io/conan/pull/5189). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1286)
- Feature: Allow using wildcards to remove system requirements sentinel from cache. (https://github.com/conan-io/conan/pull/5176). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1294)
- Feature: Implement conan.conf ``retry`` and ``retry-wait`` and ``CONAN_RETRY`` and ``CONAN_RETRY_WAIT`` to configure all retries for all transfers, including upload, download, and ``tools.download()``. (https://github.com/conan-io/conan/pull/5174). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1295)
- Feature: Support yaml lists in workspace ``root`` field. (https://github.com/conan-io/conan/pull/5156). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1288)
- Feature: Add gcc 8.3 and 9.1 new versions to default *settings.yml* (https://github.com/conan-io/conan/pull/5112)
- Feature: Retry upload or download for error in response message (e.g. status is '500') (https://github.com/conan-io/conan/pull/4984)
- Fix: Do not retry file transfer operations for 401 and 403 auth and permissions errors. (https://github.com/conan-io/conan/pull/5278)
- Fix: Copy symlinked folder when using `merge_directories` function (https://github.com/conan-io/conan/pull/5237)
- Fix: Add the ability to avoid the `/verbosity` argument in CMake command line for MSBuild (https://github.com/conan-io/conan/pull/5220). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1292)
- Fix: self.copy with symlinks=True does not copy symlink if the .conan directory is a symlink 5114 (https://github.com/conan-io/conan/pull/5125)
- Fix: Export detected_os from tools.oss (5101) (https://github.com/conan-io/conan/pull/5102). Docs: [:page_with_curl:](https://github.com/conan-io/docs/pull/1276)
- Fix: Use `revision` as the SVN's `peg_revision` (broken for an edge case) (https://github.com/conan-io/conan/pull/5029)
- Bugfix: ``--update`` was not updating ``python_requires`` using version ranges. (https://github.com/conan-io/conan/pull/5265)
- Bugfix: ``visual_studio`` generator only adds ".lib" extension for lib names without extension, otherwise (like ".a") respect it. (https://github.com/conan-io/conan/pull/5254)
- Bugfix: Fix `conan search` command showing revisions timestamps in a different time offset than UTC. (https://github.com/conan-io/conan/pull/5232)
- Bugfix: Meson build-helper gets correct compiler flags, AutoTools build environment adds compiler.runtime flags (https://github.com/conan-io/conan/pull/5222)
- Bugfix: The `cmake_multi` generator was not managing correctly the `RelWithDebInfo` and `MinSizeRel` build types. (https://github.com/conan-io/conan/pull/5221)
- Bugfix: Check that registry file exists before removing it (https://github.com/conan-io/conan/pull/5219)
- Bugfix: do not append "-T " if generator doesn't support it (https://github.com/conan-io/conan/pull/5201)
- Bugfix: ``conan download`` always retrieve the sources, also with ``--recipe`` argument, which should only skip download binaries, not the sources. (https://github.com/conan-io/conan/pull/5194)
- Bugfix: Using `scm` declared in a superclass failed exporting the recipe with the error `ERROR: The conanfile.py defines more than one class level 'scm' attribute`. (https://github.com/conan-io/conan/pull/5185)
- Bugfix: Conan command returns 6 (Invalid configuration) also when the settings are restricted in the recipe (https://github.com/conan-io/conan/pull/5178)
- Bugfix: Make sure that proxy "http_proxy", "https_proxy", "no_proxy" vars are correctly removed if custom ones are defined in the conan.conf. Also, avoid using ``urllib.request.getproxies()``, they are broken. (https://github.com/conan-io/conan/pull/5162)
- Bugfix: Use `copy()` for deploy generator so that permissions of files are preserved. Required if you want to use the deploy generator to deploy executables. (https://github.com/conan-io/conan/pull/5136)

- Fix: Accept v140 and VS 15.0 for CMake generator (5318) (https://github.com/conan-io/conan/pull/5331)
- Fix: Constraint transitive dependency typed-ast (required by astroid) in python3.4, as they stopped releasing wheels, and it fails to build in some Windows platforms with older SDKs. (https://github.com/conan-io/conan/pull/5331)

- Because of an issue with the deploy pipeline this version has been released with mixed changes from 1.16.X branch. Please, use 1.15.4