diff --git a/release.sh b/release.sh
index 3470bc633..3fbc5840a 100755
--- a/release.sh
+++ b/release.sh
@@ -1,51 +1,111 @@
 #/bin/bash
 
-VERSION=`git describe --tags --abbrev=0`
-LAST_DIGIT=`echo $VERSION | cut -f 3 -d '.'`
-MAIN_REV=`echo $VERSION | cut -f 1,2 -d '.'`
+##
+## Versioning info: [major].[minor].[patch][-RC[num]], example: 3.1.159, 3.1.159-RC1
+##
+
+# TODO: verificar porque só pega versões superiores (3.1.200 ao invés de 3.1.200-RC9)
+# VERSION=`git describe --tags --abbrev=0`
+
+VERSION_PATTERN='([0-9]+)\.([0-9]+)\.([0-9]+)(-RC[0-9]+)?'
+
+SED_AWKWARD_PATTERN="[0-9]+\.[0-9]+\.[0-9]+(-RC[0-9]+){0,1}"
+
+LATEST_VERSION=$(git tag | egrep $VERSION_PATTERN | sort --version-sort | tail -1)
+MAJOR_VERSION=$(echo $LATEST_VERSION | cut -d"-" -f1)
+IS_RC=$(echo $LATEST_VERSION | egrep '(-RC)')
+MAJOR_TAG_CREATED=$(git tag | egrep $MAJOR_VERSION"$")
+
+if [ -n "$MAJOR_TAG_CREATED" ]; then
+   LATEST_VERSION=$MAJOR_VERSION
+fi
+
+LAST_DIGIT=`echo $MAJOR_VERSION | cut -f 3 -d '.'`
+MAIN_REV=`echo $MAJOR_VERSION | cut -f 1,2 -d '.'`
 NEXT_NUMBER=$(($LAST_DIGIT + 1))
 NEXT_VERSION=$MAIN_REV'.'$NEXT_NUMBER
 
+FINAL_VERSION=
+
+function change_files {
 
-function bump_version {
-    sed -e s/$VERSION/$NEXT_VERSION/g docker-compose.yml > tmp1
+    echo "Atualizando de "$LATEST_VERSION" para "$FINAL_VERSION
+
+    sed -E s/$LATEST_VERSION/$FINAL_VERSION/g docker-compose.yml > tmp1
     mv tmp1 docker-compose.yml
 
-    sed -e s/$VERSION/$NEXT_VERSION/g setup.py > tmp2
+    sed -E s/$LATEST_VERSION/$FINAL_VERSION/g setup.py > tmp2
     mv tmp2 setup.py
 
-    sed -e s/$VERSION/$NEXT_VERSION/g sapl/templates/base.html > tmp3
+    sed -E s/$LATEST_VERSION/$FINAL_VERSION/g sapl/templates/base.html > tmp3
     mv tmp3 sapl/templates/base.html
 
-    sed -e s/$VERSION/$NEXT_VERSION/g sapl/settings.py > tmp4
+    sed -E s/$LATEST_VERSION/$FINAL_VERSION/g sapl/settings.py > tmp4
     mv tmp4 sapl/settings.py
 }
 
+function set_major_version {
+    if [ -z "$IS_RC" ] || [ -n "$MAJOR_TAG_CREATED" ]; then
+        FINAL_VERSION=$NEXT_VERSION
+    else
+        FINAL_VERSION=$MAJOR_VERSION
+    fi
+}
+
+function set_rc_version {
+    if [ -z "$IS_RC" ]; then
+        NEXT_RC_VERSION=$NEXT_VERSION"-RC0"
+    else
+        LAST_RC_DIGIT=$(echo $LATEST_VERSION | rev | cut -d"-" -f1 | rev | sed s/RC//)
+        NEXT_RC_NUMBER=$(($LAST_RC_DIGIT + 1))
+        NEXT_RC_VERSION=$(echo $LATEST_VERSION | cut -d"-" -f1)'-RC'$NEXT_RC_NUMBER
+    fi
+
+    FINAL_VERSION=$NEXT_RC_VERSION
+}
+
 function commit_and_push {
    echo "committing..."
    git add docker-compose.yml setup.py sapl/settings.py sapl/templates/base.html
    git commit -m "Release: $NEXT_VERSION"
-   git tag $NEXT_VERSION
+   git tag $FINAL_VERSION
 
    echo "sending to github..."
-   git push origin $NEXT_VERSION
    git push origin
+   git push origin $FINAL_VERSION
 
    echo "done."
 }
 
 case "$1" in
-    --dry-run)
-        echo "Dry run"
-        bump_version
-        echo "done."
-        echo "Run git checkout -- docker-compose.yml setup.py to undo the files"
-
-        exit 0
-        ;;
-    --publish)
-       echo "generating release"
-       bump_version
-       commit_and_push
+    --latest)
+       echo $LATEST_VERSION
+       exit 0
+       ;;
+    --major)
+       set_major_version
+       echo "generating major release: "$FINAL_VERSION
+       git tag $FINAL_VERSION
+       change_files
+       # commit_and_push
+       exit 0
+       ;;
+    --rc)
+       set_rc_version
+       echo "generating release candidate: "$FINAL_VERSION
+       git tag $FINAL_VERSION
+       change_files
+       # commit_and_push
+       exit 0
+      ;;
+    --undo)
+       git tag -d $LATEST_VERSION
+       exit 0
+       ;;
+    --top)
+       git tag | sort --version-sort | tail "-$2"
+       exit 0
+       ;;
+
 esac