diff --git a/Cargo.lock b/Cargo.lock
index eb4cfa8a..c5357724 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -156,7 +156,7 @@ checksum = "0d6ef0072f8a535281e4876be788938b528e9a1d43900b82c2569af7da799125"
 
 [[package]]
 name = "falco_event"
-version = "0.1.4"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -173,7 +173,7 @@ dependencies = [
 
 [[package]]
 name = "falco_event_derive"
-version = "0.2.0"
+version = "0.4.0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -182,7 +182,7 @@ dependencies = [
 
 [[package]]
 name = "falco_plugin"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "bumpalo",
@@ -205,11 +205,11 @@ dependencies = [
 
 [[package]]
 name = "falco_plugin_api"
-version = "0.2.0"
+version = "0.4.0"
 
 [[package]]
 name = "falco_plugin_derive"
-version = "0.2.0"
+version = "0.4.0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -218,7 +218,7 @@ dependencies = [
 
 [[package]]
 name = "falco_plugin_runner"
-version = "0.1.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "falco_event",
@@ -230,7 +230,7 @@ dependencies = [
 
 [[package]]
 name = "falco_plugin_tests"
-version = "0.1.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "cxx",
diff --git a/falco_event/Cargo.toml b/falco_event/Cargo.toml
index 6a4c4739..0e95f4d1 100644
--- a/falco_event/Cargo.toml
+++ b/falco_event/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "falco_event"
-version = "0.1.4"
+version = "0.4.0"
 edition = "2021"
 license = "Apache-2.0"
 description = "Type-safe wrappers for Falco events"
@@ -12,7 +12,7 @@ categories = ["api-bindings"]
 
 [dependencies]
 byteorder = "1.5.0"
-falco_event_derive = { path = "../falco_event_derive", version = "0.2.0" }
+falco_event_derive = { path = "../falco_event_derive", version = "0.4.0" }
 memchr = "2.7.1"
 num-derive = "0.4.2"
 num-traits = "0.2.17"
diff --git a/falco_event_derive/Cargo.toml b/falco_event_derive/Cargo.toml
index f2347bcd..5d1e267b 100644
--- a/falco_event_derive/Cargo.toml
+++ b/falco_event_derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "falco_event_derive"
-version = "0.2.0"
+version = "0.4.0"
 edition = "2021"
 license = "Apache-2.0"
 description = "Helper proc macros for the falco_event library"
diff --git a/falco_plugin/Cargo.toml b/falco_plugin/Cargo.toml
index 2d743e80..d87031e8 100644
--- a/falco_plugin/Cargo.toml
+++ b/falco_plugin/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "falco_plugin"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "Apache-2.0"
 description = "High level bindings for the Falco plugin API"
@@ -17,9 +17,9 @@ thread-safe-tables = ["dep:parking_lot"]
 
 [dependencies]
 thiserror = "1.0.58"
-falco_event = { path = "../falco_event", version = "0.1.2" }
-falco_plugin_api = { path = "../falco_plugin_api", version = "0.2.0" }
-falco_plugin_derive = { path = "../falco_plugin_derive", version = "0.2.0" }
+falco_event = { path = "../falco_event", version = "0.4.0" }
+falco_plugin_api = { path = "../falco_plugin_api", version = "0.4.0" }
+falco_plugin_derive = { path = "../falco_plugin_derive", version = "0.4.0" }
 serde = "1.0.197"
 serde_json = "1.0.114"
 schemars = "0.8.16"
diff --git a/falco_plugin/README.md b/falco_plugin/README.md
index f5a565fa..29f14dcc 100644
--- a/falco_plugin/README.md
+++ b/falco_plugin/README.md
@@ -29,7 +29,7 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-falco_plugin = "0.3.0"
+falco_plugin = "0.4.0"
 ```
 
 The general layout of your plugin code would be:
@@ -92,7 +92,7 @@ edition = "2021"
 crate-type = ["staticlib"]
 
 [dependencies]
-falco_plugin = "0.3.0"
+falco_plugin = "0.4.0"
 ```
 
 The outline of the plugin code would look like:
@@ -191,4 +191,13 @@ with the plugin type.
 The SDK uses the [`log`] crate for logging, redirecting all messages to the Falco libs logger, so you can use
 e.g. `log::info!` in your plugin without any explicit initialization. The log level defaults to `Trace`
 in debug builds and to `Info` in release builds, but can be overridden by calling [`log::set_max_level`]
-in your [plugin init method](`base::Plugin::new`).
\ No newline at end of file
+in your [plugin init method](`base::Plugin::new`).
+
+## Versioning and MSRV
+
+The SDK consists of several crates, some are more coupled to each other, some are mostly independent. However,
+to keep packaging manageable, all the crates are versioned together, i.e. a version bump in one causes
+a corresponding version bump in all the other crates, even if it's not strictly necessary. This may change
+in the future.
+
+While we're in the 0.x version range, the Minimum Supported Rust Version is defined as "latest stable".
\ No newline at end of file
diff --git a/falco_plugin_api/Cargo.toml b/falco_plugin_api/Cargo.toml
index 762ee5d0..f44fd5f2 100644
--- a/falco_plugin_api/Cargo.toml
+++ b/falco_plugin_api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "falco_plugin_api"
-version = "0.2.0"
+version = "0.4.0"
 edition = "2021"
 license = "Apache-2.0"
 description = "Autogenerated bindings for the Falco plugin API"
diff --git a/falco_plugin_derive/Cargo.toml b/falco_plugin_derive/Cargo.toml
index 429cbbc5..711e64a6 100644
--- a/falco_plugin_derive/Cargo.toml
+++ b/falco_plugin_derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "falco_plugin_derive"
-version = "0.2.0"
+version = "0.4.0"
 edition = "2021"
 license = "Apache-2.0"
 description = "Derive macros for the falco_plugin library"
diff --git a/falco_plugin_runner/Cargo.toml b/falco_plugin_runner/Cargo.toml
index c58e8c32..fff0fac6 100644
--- a/falco_plugin_runner/Cargo.toml
+++ b/falco_plugin_runner/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "falco_plugin_runner"
-version = "0.1.0"
+version = "0.4.0"
 edition = "2021"
 
 [dependencies]
 anyhow = "1.0.89"
-falco_event = { version = "0.1.4", path = "../falco_event" }
-falco_plugin_api = { version = "0.2.0", path = "../falco_plugin_api" }
+falco_event = { version = "0.4.0", path = "../falco_event" }
+falco_plugin_api = { version = "0.4.0", path = "../falco_plugin_api" }
 serde = { version = "1.0.210", features = ["derive"] }
 serde_json = "1.0.128"
 
diff --git a/falco_plugin_tests/Cargo.toml b/falco_plugin_tests/Cargo.toml
index fbd371b6..727577d6 100644
--- a/falco_plugin_tests/Cargo.toml
+++ b/falco_plugin_tests/Cargo.toml
@@ -1,13 +1,14 @@
 [package]
 name = "falco_plugin_tests"
-version = "0.1.0"
+version = "0.4.0"
 edition = "2021"
+publish = false
 
 [dependencies]
 anyhow = "1.0.88"
 cxx = { version = "1.0.124", features = ["c++17"] }
-falco_plugin = { path = "../falco_plugin" }
-falco_plugin_runner = { version = "0.1.0", path = "../falco_plugin_runner" }
+falco_plugin = { version = "0.4.0", path = "../falco_plugin" }
+falco_plugin_runner = { version = "0.4.0", path = "../falco_plugin_runner" }
 log = "0.4.22"
 
 [build-dependencies]