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Mention -O flag in CHANGELOG

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Fixes https://github.com/dart-lang/sdk/issues/34104

Change-Id: I9d74c931bcb35f280c85b87e1e7847bfe98b72a7
Reviewed-on: https://dart-review.googlesource.com/69181
Reviewed-by: Kevin Moore <kevmoo@google.com>
Commit-Queue: Sigmund Cherem <sigmund@google.com>
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Sigmund Cherem 2018-08-09 18:14:15 +00:00 committed by commit-bot@chromium.org
parent 79f69abace
commit 099f1504fa
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CHANGELOG.md
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@ -23,6 +23,19 @@
* Pub will no longer delete directories named "packages".
* The `--packages-dir` flag is now ignored.
#### dart2js
* Added `-O` flag to tune optimization levels. For more details run `dart2js
-h -v`.
We recommend to enable optimizations using the `-O` flag instead of
individual flags for each optimization. This is because the `-O` flag is
intended to be stable and continue to work in future versions of dart2js,
while individual flags may come and go.
At this time we recommend to test and debug with `-O1` and to deploy with
`-O3`.
## 2.0.0 - 07-08-2018
This is the first major version release of Dart since 1.0.0, so it contains many