Add 0.5.0 blog entry

docs/content/blog/balter-0.5.0.md

@@ -5,4 +5,45 @@ date = "2024-04-12"
 
 # Balter v0.5.0
 
-The release of Balter v0.5.0 comes with a significant number of changes.
+The release of Balter v0.5.0 comes with major core refactors and a major feature which rounds out the basic functionality for single-server operation.
+
+# Latency Controller Added
+
+You can now limit a Scenario based on latency measurements. Currently this takes both a latency value as well as a quantile (eg. p90):
+
+```rust
+foo_scenario()
+    .latency(Duration::from_millis(20), 0.95) // a p95 latency of 20ms
+    .await;
+```
+
+# Duration is No Longer Required
+
+A `.duration()` call was previously required for a Scenario. Now it is not needed, and instead will default to running indefinitely.
+
+```rust
+// Runs indefinitely
+foo_scenario()
+    .tps(10_000)
+    .await;
+```
+
+# Scenario Overhaul
+
+The Scenario running logic was completely overhauled and simplified. This was done for a number of reasons, but the biggest benefit is a far more intuitive and powerful API. Scenarios can now takes as many constraints as you want, rather than just one:
+```rust
+// Limit with all of:
+// - Max TPS of 10,000
+// - Max p99 latency of 20ms
+// - Max error rate of 3%
+foo_scenario()
+    .tps(10_000)
+    .error_rate(0.03)
+    .latency(Duration::from_millis(20), 0.99)
+    .duration(Duration::from_secs(360))
+    .await
+```
+
+# A Website
+
+Balter now has a website! This will make it far easier to have long-form documentation and keep it updated more rapidly.