diff --git a/CHANGES.md b/CHANGES.md
index a85b6453407b101ff0278753096f8789487ef8a3..2cf022fb8e9b6c2206a5d1e29731ea540f290223 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,7 +8,7 @@ Core
   * coercions are now supported for `if` and `match` branches
   * `interrupt` command should now properly interrupt running provers.
   * clearer typing error messages thanks to printing qualified names
-  * fixed handling of prover upgrades, resurected the policy
+  * fixed handling of prover upgrades, resurrected the policy
     "duplicate" and added a policy "remove"
 
 API
@@ -25,7 +25,7 @@ Language
   * range types have now a default ordering to be used in `variant` clause
 
 Standard library
-  * library `Ieee_float`: floating-point operations can now be used in
+  * library `ieee_float`: floating-point operations can now be used in
     programs
 
 Transformations
diff --git a/ROADMAP b/ROADMAP
index 8d80b265ac68137fb1577c570f76a1cbc2a541da..7f09d47c191b24824b7d6f68a4f535e1ae49cd28 100644
--- a/ROADMAP
+++ b/ROADMAP
@@ -116,7 +116,9 @@
 * check that "make xml-validate-local" is OK
   (see below : copy the dtd on the web)
 
-* put 0.86 in file Version, and then run ./config.status
+* change version number
+ - VERSION=1.1.0
+ - put 1.1.0 in file Version, and then run ./config.status
 * check/update the content of the About dialog in src/ide/gconfig.ml
   around lines 600-650
 * check headers
@@ -134,32 +136,37 @@
  - do "make apidoc"
 
 * make a last commit:
- - git commit -am "Version 0.86"
- - git tag 0.86
+ - git commit -am "Version $VERSION"
+ - git tag $VERSION
 * do "make dist"
-* test distrib/why3-0.86.tar.gz
+* test distrib/why3-$VERSION.tar.gz
 * push the commit:
  - git push
  - git push --tags
-* upload distrib/why3-0.86.tar.gz to https://gforge.inria.fr/frs/?group_id=2990
+* upload distrib/why3-$VERSION.tar.gz to https://gforge.inria.fr/frs/?group_id=2990
 
 * upload the documentation on the web page
- - cp share/why3session.dtd /users/www-perso/projets/why3/
- - cp doc/manual.pdf /users/www-perso/projets/why3/download/manual-0.86.pdf
-   ln -s -n -f download/manual-0.86.pdf /users/www-perso/projets/why3/manual.pdf
- - cp -r doc/html /users/www-perso/projets/why3/doc-0.86
-   ln -s -n -f doc-0.86 /users/www-perso/projets/why3/doc
- - cp -r doc/stdlibdoc /users/www-perso/projets/why3/stdlib-0.86
-   ln -s -n -f stdlib-0.86 /users/www-perso/projets/why3/stdlib
- - cp -r doc/apidoc /users/www-perso/projets/why3/api-0.86
-   ln -s -n -f api-0.86 /users/www-perso/projets/why3/api
+  cp share/why3session.dtd /users/www-perso/projets/why3/
+  cp doc/manual.pdf /users/www-perso/projets/why3/download/manual-$VERSION.pdf
+  ln -s -n -f download/manual-$VERSION.pdf /users/www-perso/projets/why3/manual.pdf
+  cp -r doc/html /users/www-perso/projets/why3/doc-$VERSION
+  ln -s -n -f doc-$VERSION /users/www-perso/projets/why3/doc
+  cp -r doc/stdlibdoc /users/www-perso/projets/why3/stdlib-$VERSION
+  ln -s -n -f stdlib-$VERSION /users/www-perso/projets/why3/stdlib
+  cp -r doc/apidoc /users/www-perso/projets/why3/api-$VERSION
+  ln -s -n -f api-$VERSION /users/www-perso/projets/why3/api
 
 * update the main HTML page (sources are in repository why3-www)
- - edit index.html, change at least all occurrences of 0.85 by 0.86, and
+ - edit index.html, change at least all occurrences of 1.0.0 by 1.1.0, and
    update the url for download
  - make (to check validity)
  - make export
 
+* update TryWhy3
+  make trywhy3
+  make trywhy3_package
+  tar xzf trywhy3.tar.gz -C /users/www-perso/projets/why3/try/ --strip-components=1
+
 * The next commit : add +git to the version in file Version
 
 * prepare the OPAM package
@@ -171,24 +178,24 @@
    git clone git@github.com:.../opam-repository.git
    cd opam-repository/
    git remote add opam https://github.com/ocaml/opam-repository.git
-   opam repository add --kind=git local .
+   opam2 repository add --all-switches --kind=git local .
  - reinitialize the repository if not fresh:
    git fetch opam
    git reset --hard opam/master
    git push
  - create version directories:
-   cp -r .../why3.opam packages/why3/why3.1.0.0
-   cp -r .../why3-ide.opam packages/why3-ide/why3-ide.1.0.0
-   cp -r .../why3-coq.opam why3-coq/why3-coq.1.0.0
- - update why3{-ide,-coq}.1.0.0/opam with the dependency on why3
- - create why3/why3.1.0.0/url: url and checksum of why-1.0.0.tar.gz
-   md5sum .../distrib/why3-1.0.0.tar.gz
-   cp why3/why3.1.0.0/url why3-ide/why3-ide.1.0.0/url
-   cp why3/why3.1.0.0/url why3-coq/why3-coq.1.0.0/url
+   mkdir packages/why3/why3.$VERSION packages/why3-coq/why3-coq.$VERSION packages/why3-ide/why3-ide.$VERSION
+   copy the opam files from the directories of the previous release (Opam 2.0 format)
+   merge the changes from the why3.opam, why3-ide.opam, and why3-coq.opam directories (Opam 1.2 format)
+ - update why3{-ide,-coq}.$VERSION/opam with the dependency on why3
+ - url and checksum of why3.tar.gz:
+   md5sum .../distrib/why3-$VERSION.tar.gz
+   update the "url" section of all three opam files
  - test opam files:
-   opam update local
-   opam install why3 why3-ide why3-coq
- - commit and push
+   git commit ...
+   opam2 update local
+   opam2 install why3 why3-ide why3-coq
+ - git push
  - make a pull request on github
 
 * inform Jerry James <loganjerry@gmail.com> so that he can produce the
diff --git a/Version b/Version
index bb64ea34004f932dc65ce4bc4bdb1df7ec58602a..8a62b3207fb3d7b5a273bb90996d9e4d516deb9e 100644
--- a/Version
+++ b/Version
@@ -1 +1 @@
-VERSION=1.1.0
+VERSION=1.1.0+git