diff --git a/Cargo.lock b/Cargo.lock
index 82dbff4ee..56799c26c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1249,7 +1249,7 @@ dependencies = [
 
 [[package]]
 name = "humility"
-version = "0.11.11"
+version = "0.11.12"
 dependencies = [
  "anyhow",
  "bitfield",
diff --git a/Cargo.toml b/Cargo.toml
index fb74ef0a5..890b4db79 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ name = "humility"
 #
 # Be sure to check in and push all of the files that change.  Happy versioning!
 #
-version = "0.11.11"
+version = "0.11.12"
 authors = ["Bryan Cantrill <bryan@oxide.computer>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/cmd/flash/src/lib.rs b/cmd/flash/src/lib.rs
index 1cb133d79..9ec815c9b 100644
--- a/cmd/flash/src/lib.rs
+++ b/cmd/flash/src/lib.rs
@@ -121,12 +121,17 @@ fn force_openocd(
     };
 
     let payload = match &config.program {
-        FlashProgram::OpenOcd(payload) => payload,
-        _ => {
+        Some(FlashProgram::OpenOcd(payload)) => payload,
+        Some(other) => {
             bail!(
                 "cannot force OpenOCD for non-OpenOCD \
-                flash configuration: {:?}",
-                config.program
+                flash configuration: {other:?}",
+            );
+        }
+        None => {
+            bail!(
+                "cannot force OpenOCD, this archive was \
+                built after support was removed"
             );
         }
     };
diff --git a/humility-core/src/hubris.rs b/humility-core/src/hubris.rs
index 662332c10..e2d1eef92 100644
--- a/humility-core/src/hubris.rs
+++ b/humility-core/src/hubris.rs
@@ -40,7 +40,7 @@ const OXIDE_NT_HUBRIS_ARCHIVE: u32 = OXIDE_NT_BASE + 1;
 const OXIDE_NT_HUBRIS_REGISTERS: u32 = OXIDE_NT_BASE + 2;
 const OXIDE_NT_HUBRIS_TASK: u32 = OXIDE_NT_BASE + 3;
 
-const MAX_HUBRIS_VERSION: u32 = 8;
+const MAX_HUBRIS_VERSION: u32 = 9;
 
 #[derive(Default, Debug, Serialize)]
 pub struct HubrisManifest {
@@ -498,8 +498,12 @@ pub enum FlashArgument {
 
 #[derive(Debug, Deserialize)]
 pub struct HubrisFlashMeta {
-    pub program: FlashProgram,
+    /// Legacy flash program. Not included in new archives.
+    pub program: Option<FlashProgram>,
+    /// Arguments for legacy flash program, or empty if not used.
+    #[serde(default)]
     pub args: Vec<FlashArgument>,
+    /// Chip name used by probe-rs.
     pub chip: Option<String>,
 }
 
@@ -1548,25 +1552,20 @@ impl HubrisArchive {
             }};
         }
 
-        let mut flash = String::new();
-
-        archive
-            .by_name("img/flash.ron")
-            .map_err(|_| {
-                anyhow!(
+        let flash_ron = archive.by_name("img/flash.ron").map_err(|_| {
+            anyhow!(
                 "could not find img/flash.ron in archive; \
                 does archive pre-date addition of flash information?"
             )
-            })?
-            .read_to_string(&mut flash)?;
+        })?;
 
-        let config: HubrisFlashMeta = ron::from_str(&flash)?;
+        let config: HubrisFlashMeta = ron::de::from_reader(flash_ron)?;
 
         // This is incredibly ugly! It also gives us backwards compatibility!
         let chip: Option<String> = match config.chip {
             Some(ref chip) => Some(chip.to_string()),
             None => match &config.program {
-                FlashProgram::PyOcd(args) => {
+                Some(FlashProgram::PyOcd(args)) => {
                     let s69 = regex::Regex::new(r"lpc55s69").unwrap();
                     let s28 = regex::Regex::new(r"lpc55s28").unwrap();
                     let mut c: Option<String> = None;
@@ -1589,7 +1588,7 @@ impl HubrisArchive {
                     }
                     c
                 }
-                FlashProgram::OpenOcd(ref a) => match a {
+                Some(FlashProgram::OpenOcd(ref a)) => match a {
                     FlashProgramConfig::Payload(d) => {
                         let h7 =
                             regex::Regex::new(r"find target/stm32h7").unwrap();
@@ -1624,6 +1623,10 @@ impl HubrisArchive {
                     }
                     _ => bail!("Unexpected config?"),
                 },
+                None => {
+                    bail!("archive flash.ron is missing both probe-rs chip \
+                        name and legacy flash config");
+                }
             },
         };
 
diff --git a/tests/cmd/chip.trycmd b/tests/cmd/chip.trycmd
index 5704a7c8d..7596ca8f2 100644
--- a/tests/cmd/chip.trycmd
+++ b/tests/cmd/chip.trycmd
@@ -13,7 +13,7 @@ For more information try --help
 
 ```
 $ humility --chip this-can-be-anything -V
-humility 0.11.11
+humility 0.11.12
 
 ```
 
@@ -28,7 +28,7 @@ For more information try --help
 
 ```
 $ humility -c apx432 -V
-humility 0.11.11
+humility 0.11.12
 
 ```
 
diff --git a/tests/cmd/version.trycmd b/tests/cmd/version.trycmd
index 662cea2fa..a5a5e4e0c 100644
--- a/tests/cmd/version.trycmd
+++ b/tests/cmd/version.trycmd
@@ -2,7 +2,7 @@ Long version flag:
 
 ```
 $ humility --version
-humility 0.11.11
+humility 0.11.12
 
 ```
 
@@ -10,6 +10,6 @@ Short version flag:
 
 ```
 $ humility -V
-humility 0.11.11
+humility 0.11.12
 
 ```