VER: Release 0.50.0

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.50.0 - 2026-02-24
+
+### Enhancements
+- Added `SkippedRecordsAfterSlowReading` to the `ErrorCode` enum for gateway errors
+  originating from slow client catch-up
+
 ## 0.49.0 - 2026-02-17
 
 ### Enhancements

Cargo.toml

@@ -11,7 +11,7 @@ resolver = "2"
 [workspace.package]
 authors = ["Databento <support@databento.com>"]
 edition = "2021"
-version = "0.49.0"
+version = "0.50.0"
 documentation = "https://databento.com/docs"
 repository = "https://github.com/databento/dbn"
 license = "Apache-2.0"

python/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "databento-dbn"
-version = "0.49.0"
+version = "0.50.0"
 description = "Python bindings for encoding and decoding Databento Binary Encoding (DBN)"
 readme = "README.md"
 requires-python = ">=3.10"

python/python/databento_dbn/_lib.pyi

@@ -1145,6 +1145,8 @@ class ErrorCode(Enum):
         There was an issue with a subscription request (other than symbol resolution).
     INTERNAL_ERROR
         An error occurred in the gateway.
+    SKIPPED_RECORDS_AFTER_SLOW_READING
+        A slow client was detected and records were skipped by the gateway to allow catching up.
     UNSET
         No error code was specified or this record was upgraded from a version 1 struct where the code field didn't exist.
 
@@ -1156,6 +1158,7 @@ class ErrorCode(Enum):
     SYMBOL_RESOLUTION_FAILED: int
     INVALID_SUBSCRIPTION: int
     INTERNAL_ERROR: int
+    SKIPPED_RECORDS_AFTER_SLOW_READING: int
     UNSET: int
 
     def __init__(self, value: int) -> None: ...

rust/dbn-cli/Cargo.toml

@@ -16,7 +16,7 @@ name = "dbn"
 path = "src/main.rs"
 
 [dependencies]
-dbn = { path = "../dbn", version = "=0.49.0", default-features = false }
+dbn = { path = "../dbn", version = "=0.50.0", default-features = false }
 
 anyhow.workspace = true
 clap = { version = "4.5", features = ["derive", "wrap_help"] }

rust/dbn/Cargo.toml

@@ -25,7 +25,7 @@ serde = ["dep:serde", "time/parsing", "time/serde"]
 trivial_copy = []
 
 [dependencies]
-dbn-macros = { version = "=0.49.0", path = "../dbn-macros" }
+dbn-macros = { version = "=0.50.0", path = "../dbn-macros" }
 
 async-compression = { version = "0.4.37", features = ["tokio", "zstd"], optional = true }
 csv = { workspace = true }

rust/dbn/src/enums.rs

@@ -1429,6 +1429,9 @@ pub enum ErrorCode {
     /// An error occurred in the gateway.
     #[pyo3(name = "INTERNAL_ERROR")]
     InternalError = 6,
+    /// A slow client was detected and records were skipped by the gateway to allow catching up.
+    #[pyo3(name = "SKIPPED_RECORDS_AFTER_SLOW_READING")]
+    SkippedRecordsAfterSlowReading = 7,
     /// No error code was specified or this record was upgraded from a version 1 struct where the code field didn't exist.
     #[default]
     #[pyo3(name = "UNSET")]
@@ -1446,6 +1449,7 @@ impl std::str::FromStr for ErrorCode {
             "symbol_resolution_failed" => Ok(Self::SymbolResolutionFailed),
             "invalid_subscription" => Ok(Self::InvalidSubscription),
             "internal_error" => Ok(Self::InternalError),
+            "skipped_records_after_slow_reading" => Ok(Self::SkippedRecordsAfterSlowReading),
             "unset" => Ok(Self::Unset),
             _ => Err(crate::Error::conversion::<Self>(s.to_owned())),
         }
@@ -1468,6 +1472,7 @@ impl ErrorCode {
             Self::SymbolResolutionFailed => "symbol_resolution_failed",
             Self::InvalidSubscription => "invalid_subscription",
             Self::InternalError => "internal_error",
+            Self::SkippedRecordsAfterSlowReading => "skipped_records_after_slow_reading",
             Self::Unset => "unset",
         }
     }

rust/dbn/src/python/enums.rs

@@ -1379,6 +1379,7 @@ impl ErrorCode {
             Self::SymbolResolutionFailed => "SYMBOL_RESOLUTION_FAILED",
             Self::InvalidSubscription => "INVALID_SUBSCRIPTION",
             Self::InternalError => "INTERNAL_ERROR",
+            Self::SkippedRecordsAfterSlowReading => "SKIPPED_RECORDS_AFTER_SLOW_READING",
             Self::Unset => "UNSET",
         }
     }