3 files changed, 7 insertions, 12 deletions

diff --git a/docs/dev/README.md b/docs/dev/README.md
index 3af01cd6b..2bb2f75bd 100644
--- a/docs/dev/README.md
+++ b/docs/dev/README.md
@@ -397,13 +397,7 @@ To log all communication between the server and the client, there are two choice
 
 There are also two VS Code commands which might be of interest:
 
-* `Rust Analyzer: Status` shows some memory-usage statistics. To take full
-  advantage of it, you need to compile rust-analyzer with jemalloc support:
-  ```
-  $ cargo install --path crates/rust-analyzer --force --features jemalloc
-  ```
-
-  There's an alias for this: `cargo xtask install --server --jemalloc`.
+* `Rust Analyzer: Status` shows some memory-usage statistics.
 
 * `Rust Analyzer: Syntax Tree` shows syntax tree of the current file/selection.
 
diff --git a/docs/dev/architecture.md b/docs/dev/architecture.md
index cee916c09..d0c6eea61 100644
--- a/docs/dev/architecture.md
+++ b/docs/dev/architecture.md
@@ -170,8 +170,7 @@ The innermost and most elaborate boundary is `hir`. It has a much richer
 vocabulary of types than `ide`, but the basic testing setup is the same: we
 create a database, run some queries, assert result.
 
-For comparisons, we use [insta](https://github.com/mitsuhiko/insta/) library for
-snapshot testing.
+For comparisons, we use the `expect` crate for snapshot testing.
 
 To test various analysis corner cases and avoid forgetting about old tests, we
 use so-called marks. See the `marks` module in the `test_utils` crate for more.
diff --git a/docs/dev/lsp-extensions.md b/docs/dev/lsp-extensions.md
index 6d6bbac7c..98d14450b 100644
--- a/docs/dev/lsp-extensions.md
+++ b/docs/dev/lsp-extensions.md
@@ -11,11 +11,13 @@ If you want to be notified about the changes to this document, subscribe to [#46
 
 ## `initializationOptions`
 
-As `initializationOptions`, `rust-analyzer` expects `"rust-analyzer"` section of the configuration.
+For `initializationOptions`, `rust-analyzer` expects `"rust-analyzer"` section of the configuration.
 That is, `rust-analyzer` usually sends `"workspace/configuration"` request with `{ "items": ["rust-analyzer"] }` payload.
 `initializationOptions` should contain the same data that would be in the first item of the result.
-It's OK to not send anything, then all the settings would take their default values.
-However, some settings can not be changed after startup at the moment.
+If a language client does not know about `rust-analyzer`'s configuration options it can get sensible defaults by doing any of the following:
+ * Not sending `initializationOptions`
+ * Send `"initializationOptions": null`
+ * Send `"initializationOptions": {}`
 
 ## Snippet `TextEdit`