Merge branch 'master' into nathan/add-missing-response-hash-pseudoheader

README.md

@@ -1,6 +1,7 @@
 # Internet Computer Reference
 
-This repository contains the source files of the [Interface Spec], which describes the externally visible behaviour of the Internet Computer.
+This repository contains the source files of the Interface Spec, which describes the externally visible behaviour of the Internet Computer.
+The language-independent description of this IC interface is available in [ic.did](./spec/_attachments/ic.did).
 
 It used to contain a reference implementation and acceptance test suite; these can now be found at <https://github.com/dfinity/ic-hs>.
 
@@ -52,4 +53,4 @@ in the root directory of this repository. The exported Haskell code can then be
 
 ## Contributing
 
-This repository accepts external contributions, conditioned on acceptance of the [https://github.com/dfinity/cla/](Contributor Lincense Agreement).
+This repository accepts external contributions, conditioned on acceptance of the [Contributor Lincense Agreement](https://github.com/dfinity/cla/).

spec/_attachments/interface-spec-changelog.md

@@ -1,6 +1,13 @@
 ## Changelog {#changelog}
 
 ### ∞ (unreleased)
+* Canister cycle balance cannot decrease below the freezing limit after executing `install_code` on the management canister.
+
+### 0.20.0 (2023-07-11) {#0_20_0}
+* IC Bitcoin API, ECDSA API, canister HTTPS outcalls API, and 128-bit cycles System API are considered stable.
+* Add conditions on requested paths in read state requests.
+* Add composite queries.
+* Specify that the canister version is incremented upon every successful message execution except for successful message execution of a query method.
 
 ### 0.19.0 (2023-06-08) {#0_19_0}
 * canister version can be specified in some management canister calls (canister creation, canister code changes, canister settings changes)