diff --git a/src/builtins/deprecated.rs b/src/builtins/deprecated.rs
new file mode 100644
index 0000000..d5017b8
--- /dev/null
+++ b/src/builtins/deprecated.rs
@@ -0,0 +1,51 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+use crate::ast::Expr;
+use crate::builtins::utils::ensure_args_count;
+use crate::builtins::BuiltinFcn;
+use crate::lexer::Span;
+use crate::value::Value;
+
+use std::collections::HashMap;
+
+use anyhow::{bail, Result};
+use lazy_static::lazy_static;
+
+#[rustfmt::skip]
+lazy_static! {
+    pub static ref DEPRECATED: HashMap<&'static str, BuiltinFcn> = {
+	let mut m : HashMap<&'static str, BuiltinFcn>  = HashMap::new();
+	
+	m.insert("all", (all, 1));
+	m.insert("any", (any, 1));	
+	
+	m
+    };
+}
+
+fn all(span: &Span, params: &[Expr], args: &[Value]) -> Result<Value> {
+    ensure_args_count(span, "all", params, args, 1)?;
+
+    Ok(Value::Bool(match &args[0] {
+        Value::Array(a) => a.iter().all(|i| i == &Value::Bool(true)),
+        Value::Set(a) => a.iter().all(|i| i == &Value::Bool(true)),
+        a => {
+            let span = params[0].span();
+            bail!(span.error(format!("`all` requires array/set argument. Got `{a}`.").as_str()))
+        }
+    }))
+}
+
+fn any(span: &Span, params: &[Expr], args: &[Value]) -> Result<Value> {
+    ensure_args_count(span, "any", params, args, 1)?;
+
+    Ok(Value::Bool(match &args[0] {
+        Value::Array(a) => a.iter().any(|i| i == &Value::Bool(true)),
+        Value::Set(a) => a.iter().any(|i| i == &Value::Bool(true)),
+        a => {
+            let span = params[0].span();
+            bail!(span.error(format!("`any` requires array/set argument. Got `{a}`.").as_str()))
+        }
+    }))
+}
diff --git a/src/builtins/mod.rs b/src/builtins/mod.rs
index cf50e6b..95a1ef6 100644
--- a/src/builtins/mod.rs
+++ b/src/builtins/mod.rs
@@ -7,6 +7,7 @@ mod bitwise;
 pub mod comparison;
 mod conversions;
 mod debugging;
+pub mod deprecated;
 mod encoding;
 pub mod numbers;
 mod objects;
@@ -27,6 +28,8 @@ use lazy_static::lazy_static;
 
 pub type BuiltinFcn = (fn(&Span, &[Expr], &[Value]) -> Result<Value>, u8);
 
+pub use deprecated::DEPRECATED;
+
 #[rustfmt::skip]
 lazy_static! {
     pub static ref BUILTINS: HashMap<&'static str, BuiltinFcn> = {
diff --git a/src/interpreter.rs b/src/interpreter.rs
index 60bbd90..a497e90 100644
--- a/src/interpreter.rs
+++ b/src/interpreter.rs
@@ -39,6 +39,7 @@ pub struct Interpreter<'source> {
     builtins_cache: BTreeMap<(&'static str, Vec<Value>), Value>,
     no_rules_lookup: bool,
     traces: Option<Vec<String>>,
+    allow_deprecated: bool,
 }
 
 #[derive(Debug, Clone, Serialize)]
@@ -106,6 +107,7 @@ impl<'source> Interpreter<'source> {
             builtins_cache: BTreeMap::new(),
             no_rules_lookup: false,
             traces: None,
+            allow_deprecated: true,
         })
     }
 
@@ -1502,6 +1504,13 @@ impl<'source> Interpreter<'source> {
                     if let Some(builtin) = builtins::BUILTINS.get(path.as_str()) {
                         return self.eval_builtin_call(span, path, *builtin, params);
                     }
+                    if let Some(builtin) = builtins::DEPRECATED.get(path.as_str()) {
+                        if self.allow_deprecated {
+                            return self.eval_builtin_call(span, path, *builtin, params);
+                        } else {
+                            bail!(span.error(format!("{path} is deprecated").as_str()))
+                        }
+                    }
                 }
 
                 return Err(span
diff --git a/src/utils.rs b/src/utils.rs
index a554d4e..072c483 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -46,6 +46,8 @@ pub fn get_extra_arg<'a>(expr: &'a Expr, arities: &HashMap<String, u8>) -> Optio
                 *n_args
             } else if let Some((_, n_args)) = BUILTINS.get(path.as_str()) {
                 *n_args
+            } else if let Some((_, n_args)) = DEPRECATED.get(path.as_str()) {
+                *n_args
             } else {
                 return None;
             };