# 0.13.0

## Interface Changes¶

1. Remove draw_as_functions from ModelDesigner.Preferences. The behavior of circuit visualization is now controlled solely by the draw_at_level attribute (see below).
2. The model designer preferences can now be passed as an argument to the synthesize command in the Python SDK. Circuit Synthesis: Synthesis Preferences.
3. State preparation L2 error metric now refer to the standard definition $$\sum(x^2)^0.5$$ instead of $$\sum(x^2)$$.
4. The synthesis result now contains information about the transpiled circuit under the transpiled_circuit field. The transpiled_qasm and depth attributes are now accessible by using transpiled_circuit.qasm and transpiled_circuit.depth. In addition, you can now access a dictionary, mapping each gate to its number of occurrences in the transpiled circuit, under transpiled_circuit.count_ops.
5. Rename The no uncomputation mapping method of the arithmetic from "none" to "no_uncomputation".

## New Features¶

1. Change draw_at_level attribute in ModelDesigner.Preferences to behave as follows:
• When None (default): open up the circuit until at least two blocks are visible
• When -1: open up the circuit until gate level
• When n >= 0: open up the circuit to n levels (e.g. 0 keeps the circuit as is)
2. Allow a dirty optimized mapping method in the arithmetic expression. Arithmetic Expressions