diff --git a/Cargo.toml b/Cargo.toml
index fd5939c..b6babfe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rustls-pki-types"
-version = "1.7.0"
+version = "1.8.0"
 edition = "2021"
 rust-version = "1.60"
 license = "MIT OR Apache-2.0"
diff --git a/src/lib.rs b/src/lib.rs
index 16b660b..dd867f0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -71,6 +71,7 @@ use std::time::SystemTime;
 use web_time::SystemTime;
 
 mod server_name;
+
 pub use server_name::{
     AddrParseError, DnsName, InvalidDnsNameError, IpAddr, Ipv4Addr, Ipv6Addr, ServerName,
 };
@@ -465,6 +466,13 @@ impl<'a> From<Vec<u8>> for CertificateSigningRequestDer<'a> {
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct CertificateDer<'a>(Der<'a>);
 
+impl<'a> CertificateDer<'a> {
+    /// A const constructor to create a `CertificateDer` from a slice of DER.
+    pub const fn from_slice(bytes: &'a [u8]) -> Self {
+        Self(Der::from_slice(bytes))
+    }
+}
+
 impl AsRef<[u8]> for CertificateDer<'_> {
     fn as_ref(&self) -> &[u8] {
         self.0.as_ref()