diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d6dcf2f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,9 @@
+Copyright 2024 gtars authors
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..d6dcf2f
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,9 @@
+Copyright 2024 gtars authors
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/gtars/docs/changelog.md b/gtars/docs/changelog.md
index 04e7d81..4749db0 100644
--- a/gtars/docs/changelog.md
+++ b/gtars/docs/changelog.md
@@ -4,6 +4,20 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.0] 
+- add position shift workflow for bam to bw (was previously added for bam to bed)
+- add scaling argument for bam to bw workflow [#53](https://github.com/databio/gtars/issues/53)
+- fix accumulation issue for bam workflow [#56](https://github.com/databio/gtars/issues/56)
+- fix wiggle file (core) beginning at 0 [#43](https://github.com/databio/gtars/issues/43)
+- fix npy file (end) using start instead of end [#61](https://github.com/databio/gtars/issues/61)
+- force zoom to 1 for bed/narrowPeak to bw [#34](https://github.com/databio/gtars/issues/34)
+- fix IGD overlap issue [#45](https://github.com/databio/gtars/issues/45)
+- add ga4gh refget digest functionality [#58](https://github.com/databio/gtars/issues/58)
+- fix wig and npy inconsistency [#64](https://github.com/databio/gtars/issues/64)
+- fix narrowPeak to bw zoom  [#34](https://github.com/databio/gtars/issues/34)
+- fix bed to bw fileheader consistency issue  [#52](https://github.com/databio/gtars/issues/52)
+- change npy metadata file structure [#65](https://github.com/databio/gtars/issues/65)
+
 ## [0.1.2]
 - add position shift workflow for `bam` to `bw` (was previously added for `bam` to `bed`)
 - add scaling argument for `bam` to `bw` workflow [#53](https://github.com/databio/gtars/issues/53)